7th Grade End Of Units Test December 13th 2017

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  • 1/65 Questions

    What are cells?

    • Cells are the basic units of structure and function in living things.
    • Cells are tiny structures filled with empty spaces.
    • Cells are the basic units of living things.
    • Cells are animalcules, tiny moving organisms.
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About This Quiz

This 7th Grade End of Units Test from December 13th, 2017, assesses knowledge in cell biology, focusing on bacterial cells, cell theory, and contributions by key scientists. It emphasizes understanding of cell components and the role of cells in living organisms.

7th Grade End Of Units Test December 13th 2017 - Quiz

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  • 2. 

    What are predictions based on?

    • Predicting is forecasting based on past experience or evidence.

    • Predicting is guessing the data measurements.

    • Predicting is making a hypothesis.

    • Predicting is evaluating the evidence and outcome of testing.

    Correct Answer
    A. Predicting is forecasting based on past experience or evidence.
    Explanation
    Predictions are based on past experience or evidence. When making a prediction, one uses their knowledge of previous events or information to forecast an outcome or make an educated guess about future events. This involves analyzing patterns, trends, and data from the past to make an informed prediction about what will happen in the future. By considering past experiences and evidence, predictions can be made with a certain level of confidence and accuracy.

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  • 3. 

    What is classifying?

    • Classifying is the process or grouping together things that are alike in some way.

    • Classifying is creating models representing complex ideas or objects.

    • Classifying is predicting what will happen in an experiment.

    Correct Answer
    A. Classifying is the process or grouping together things that are alike in some way.
    Explanation
    Classifying refers to the process of grouping together things that share similarities or common characteristics. It involves categorizing items or concepts based on their shared traits or properties. This process helps in organizing and understanding information by identifying patterns or relationships among different elements. Classifying is not about creating models or predicting outcomes, but rather about organizing and categorizing based on similarities.

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  • 4. 

    Steps to follow when testing.

    • Experiment

    • Procedure

    • Control

    • Theory

    Correct Answer
    A. Procedure
    Explanation
    The given answer "Procedure" is correct because when testing, it is important to have a well-defined and systematic procedure in place. This involves following a set of steps or instructions to carry out the experiment or test. A clear procedure helps ensure consistency and accuracy in the testing process, allowing for reliable results to be obtained. It also helps to eliminate any potential bias or errors that may occur if the testing is not done in a standardized manner.

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  • 5. 
    If you are looking at the "e" through the microscope and you push your slide to the right, which way does the e in the microscope move?  - ProProfs

    If you are looking at the "e" through the microscope and you push your slide to the right, which way does the e in the microscope move? 

    • It moves to the right.

    • It moves to the left.

    • It moves away from you.

    • It moves toward you.

    Correct Answer
    A. It moves to the left.
    Explanation
    When looking at an object through a microscope, the image appears inverted. This means that if you push the slide to the right, the image of the "e" will appear to move to the left in the microscope.

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  • 6. 
    Plant Organelle Word Bank Cell membraneChromatinEndoplasmic Reticulum  RoughNuclear membranePlasmodesmataCell wallCytoplasmEndoplasmic Reticulum SmoothNucleolusPeroxisomeCentrosomeGolgi BodiesMitochondriaNucleusRibosomesChloroplastsChlorophyll  Vacuoles Use the Plant Cell Organelle word bank as you work to identify the parts of the plant organelle diagram.  Identify Organelle # 7:# 7 is shown as a thin layer of protein and fat that surrounds the inside of the cell, inside the cell wall. The cell membrane is passable, it allows some substances to pass into the cell and blocks others. - ProProfs

    Plant Organelle Word Bank Cell membraneChromatinEndoplasmic Reticulum  RoughNuclear membranePlasmodesmataCell wallCytoplasmEndoplasmic Reticulum SmoothNucleolusPeroxisomeCentrosomeGolgi BodiesMitochondriaNucleusRibosomesChloroplastsChlorophyll  Vacuoles Use the Plant Cell Organelle word bank as you work to identify the parts of the plant organelle diagram.  Identify Organelle # 7:# 7 is shown as a thin layer of protein and fat that surrounds the inside of the cell, inside the cell wall. The cell membrane is passable, it allows some substances to pass into the cell and blocks others.

    • Cell Plasma Membrane

    • Plasmodesma

    • Rough Endoplasmic Reticulum

    • Golgi Bodies

    • Peroxisome

    • Mitochondria

    • Cell Wall

    • Ribosomes

    • Smooth Endoplasmic Reticulum

    Correct Answer
    A. Cell Plasma Membrane
    Explanation
    Organelle #7 is described as a thin layer of protein and fat that surrounds the inside of the cell, inside the cell wall. This matches the description of the cell plasma membrane, which is a selectively permeable barrier that controls the movement of substances in and out of the cell. It allows some substances to pass into the cell while blocking others.

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  • 7. 
    Plant Organelle Word Bank Cell membraneChromatinEndoplasmic Reticulum  RoughNuclear membranePlasmodesmataCell wallCytoplasmEndoplasmic Reticulum SmoothNucleolusPeroxisomeCentrosomeGolgi BodiesMitochondriaNucleusRibosomesChloroplastsChlorophyll  Vacuoles Use the Plant Cell Organelle word bank as you work to identify the parts of the plant organelle diagram. Identify Organelle # 10:# 10 is modeled as flattened, folded, pancake-like structure is located near the nucleus, though not attached to the nucleus.  These structurespackage proteins and carbohydrates into membrane-bound bubbles for use and "export" in and from the cell. - ProProfs

    Plant Organelle Word Bank Cell membraneChromatinEndoplasmic Reticulum  RoughNuclear membranePlasmodesmataCell wallCytoplasmEndoplasmic Reticulum SmoothNucleolusPeroxisomeCentrosomeGolgi BodiesMitochondriaNucleusRibosomesChloroplastsChlorophyll  Vacuoles Use the Plant Cell Organelle word bank as you work to identify the parts of the plant organelle diagram. Identify Organelle # 10:# 10 is modeled as flattened, folded, pancake-like structure is located near the nucleus, though not attached to the nucleus.  These structurespackage proteins and carbohydrates into membrane-bound bubbles for use and "export" in and from the cell.

    • Cell Membrane

    • Plasmodesma

    • Rough Endoplasmic Reticulum

    • Golgi Bodies

    • Peroxisomes

    • Mitochondria

    • Cell Wall

    • Chloroplast

    • Smooth Endoplasmic Reticulum

    • Chromatin

    • Nucleolus

    • Chlorophyll

    Correct Answer
    A. Golgi Bodies
    Explanation
    Organelle #10 is the Golgi Bodies. The Golgi Bodies are flattened, folded, pancake-like structures located near the nucleus but not attached to it. They are responsible for packaging proteins and carbohydrates into membrane-bound bubbles for use and "export" in and from the cell.

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  • 8. 
    Plant Organelle Word Bank Cell membraneChromatinEndoplasmic Reticulum  RoughNuclear membranePlasmodesmataCell wallCytoplasmEndoplasmic Reticulum SmoothNucleolusPeroxisomeCentrosomeGolgi BodiesMitochondriaNucleusRibosomesChloroplastsChlorophyll  Vacuoles Use the Plant Cell Organelle word bank as you work to identify the parts of the plant organelle diagram. Identify Organelle # 13:# 13 is modeled as a dark purple sphere found within a larger sphere. This structure is where ribosomes and their RNA are produced. - ProProfs

    Plant Organelle Word Bank Cell membraneChromatinEndoplasmic Reticulum  RoughNuclear membranePlasmodesmataCell wallCytoplasmEndoplasmic Reticulum SmoothNucleolusPeroxisomeCentrosomeGolgi BodiesMitochondriaNucleusRibosomesChloroplastsChlorophyll  Vacuoles Use the Plant Cell Organelle word bank as you work to identify the parts of the plant organelle diagram. Identify Organelle # 13:# 13 is modeled as a dark purple sphere found within a larger sphere. This structure is where ribosomes and their RNA are produced.

    • Cell Membrane

    • Plasmodesma

    • Rough Endoplasmic Reticulum

    • Golgi Bodies

    • Peroxisomes

    • Mitochondria

    • Cell Wall

    • Chloroplast

    • Smooth Endoplasmic Reticulum

    • Chromatin

    • Nuclear Membrane

    • Nucleolus

    Correct Answer
    A. Nucleolus
    Explanation
    The correct answer is the nucleolus. The description provided matches the characteristics of the nucleolus, which is a structure found within the nucleus of a cell. It appears as a dark purple sphere within a larger sphere and is responsible for the production of ribosomes and their RNA.

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  • 9. 
    Identify the name of the numbered part of the microscope:  Identify # 1. - ProProfs

    Identify the name of the numbered part of the microscope:  Identify # 1.

    • Ocular/Eyepiece

    • Body Tube

    • Nosepiece

    • Low Power Objective

    • High Power Objective

    • Stage

    • Diaphragm

    • Mirror/Light source

    • Base

    • Inclination Joint

    • Aperture

    • Stage Clips

    • Arm

    • Fine focus adjustment

    • Coarse focus adjustment

    Correct Answer
    A. Ocular/Eyepiece
    Explanation
    The numbered part #1 in the microscope is the Ocular/Eyepiece.

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  • 10. 
    Identify the name of the numbered part of the microscope:  Identify #6 - ProProfs

    Identify the name of the numbered part of the microscope:  Identify #6

    • Ocular/Eyepiece

    • Body Tube

    • Nosepiece

    • Low Power Objective

    • High Power Objective

    • Stage

    • Diaphragm

    • Mirror/Light source

    • Base

    • Inclination Joint

    • Aperture

    • Stage Clips

    • Arm

    • Fine focus adjustment

    • Coarse focus adjustment

    Correct Answer
    A. Stage
  • 11. 

    What is an observation?

    • Information gathered by ones senses.

    • A way of thinking and reasoning.

    • Information gathered through research.

    • Information gathered through sampling.

    Correct Answer
    A. Information gathered by ones senses.
    Explanation
    An observation refers to the process of gathering information through one's senses. It involves using our sight, hearing, touch, taste, and smell to collect data about the world around us. This method allows us to directly perceive and gather information about objects, events, or phenomena, providing us with firsthand knowledge. It is a fundamental and essential aspect of scientific inquiry and research.

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  • 12. 

    What is skepticism?

    • Skepticism is having an attitude of doubt.

    • Skepticism is honesty, reporting the true outcomes of experiments and testing.

    • Skepticism is an eagerness to learn and be curious.

    • Skepticism is being open-minded, or capable of accepting new and different ideas.

    Correct Answer
    A. Skepticism is having an attitude of doubt.
    Explanation
    Skepticism is the attitude of doubt, which means questioning and not accepting information or beliefs without evidence or proof. It involves critically examining claims and being cautious before accepting them as true. Skeptics value evidence and rational thinking, and they are not easily swayed by emotions or personal biases. They seek to understand and evaluate arguments and claims objectively, promoting the use of critical thinking and skepticism as a tool for acquiring knowledge and understanding the world.

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  • 13. 

    If the ocular lens has a power of 40X and the objective you are using has a power of 10X, what is your power of magnification?

    • The magnification is 40X

    • The magnification is 400X

    • The magnification is 20X

    • The magnification is 100X

    Correct Answer
    A. The magnification is 400X
    Explanation
    The power of magnification is determined by multiplying the power of the ocular lens by the power of the objective lens. In this case, the ocular lens has a power of 40X and the objective lens has a power of 10X. Multiplying these two powers together gives us a magnification of 400X.

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  • 14. 
    If you push the slide away from you, which way does the letter 'e' in the microscope move?  - ProProfs

    If you push the slide away from you, which way does the letter 'e' in the microscope move? 

    • It moves to the right.

    • It moves to the left.

    • It moves away from you.

    • It moves toward you.

    Correct Answer
    A. It moves toward you.
    Explanation
    When you push the slide away from you, the letter 'e' in the microscope appears to move toward you. This is because the slide is being moved in the opposite direction of your observation point. As a result, objects on the slide, including the letter 'e', will appear to move in the opposite direction as well.

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  • 15. 

    To run a test or trial to show cause and effect.

    • Theory

    • Process

    • Experiment

    • Control

    Correct Answer
    A. Experiment
    Explanation
    An experiment is a systematic process used to test a hypothesis or validate a theory. It involves manipulating variables and observing the outcomes to determine cause and effect relationships. By conducting an experiment, one can gather empirical evidence to support or refute a theory. This process allows for controlled conditions and the ability to replicate the experiment to ensure reliable results. Therefore, the correct answer for this question is "Experiment."

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  • 16. 

    A summary of the relationship between the hypothesis and the test results.

    • Theory

    • Hypothesis

    • Conclusion

    • Data

    Correct Answer
    A. Conclusion
    Explanation
    The conclusion is the outcome or result of the hypothesis being tested. It is based on the analysis of the data collected during the experiment. The conclusion either supports or rejects the hypothesis, providing evidence for or against the theory. It summarizes the findings and allows researchers to draw inferences and make judgments about the hypothesis. Therefore, the conclusion is a crucial component in understanding the relationship between the hypothesis and the test results.

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  • 17. 
    Plant Organelle Word Bank Cell membraneChromatinEndoplasmic Reticulum  RoughNuclear membranePlasmodesmataCell wallCytoplasmEndoplasmic Reticulum SmoothNucleolusPeroxisomeCentrosomeGolgi BodiesMitochondriaNucleusRibosomesChloroplastsChlorophyll  Vacuoles Use the Plant Cell Organelle word bank as you work to identify the parts of the plant organelle diagram. Identify Organelle # 12:# 12 is modeled as a purple sphere that contains many smaller organelles. This structure controls many of the functions of the cell and contains DNA (in the chromosomes). - ProProfs

    Plant Organelle Word Bank Cell membraneChromatinEndoplasmic Reticulum  RoughNuclear membranePlasmodesmataCell wallCytoplasmEndoplasmic Reticulum SmoothNucleolusPeroxisomeCentrosomeGolgi BodiesMitochondriaNucleusRibosomesChloroplastsChlorophyll  Vacuoles Use the Plant Cell Organelle word bank as you work to identify the parts of the plant organelle diagram. Identify Organelle # 12:# 12 is modeled as a purple sphere that contains many smaller organelles. This structure controls many of the functions of the cell and contains DNA (in the chromosomes).

    • Cell Membrane

    • Plasmodesma

    • Rough Endoplasmic Reticulum

    • Golgi Bodies

    • Peroxisomes

    • Mitochondria

    • Cell Wall

    • Chloroplast

    • Smooth Endoplasmic Reticulum

    • Nucleus

    • Nuclear Membrane

    • Nucleolus

    Correct Answer
    A. Nucleus
  • 18. 
    Plant Organelle Word Bank Cell membraneChromatinEndoplasmic Reticulum  RoughNuclear membranePlasmodesmataCell wallCytoplasmEndoplasmic Reticulum SmoothNucleolusPeroxisomeCentrosomeGolgi BodiesMitochondriaNucleusRibosomesChloroplastsChlorophyll  Vacuoles Use the Plant Cell Organelle word bank as you work to identify the parts of the plant organelle diagram. Identify Organelle # 3:# 3 is modeled as a large membrane-bound space within the plant cell. It takes up much of the cell. It helps keep the shape of the cell, storing water and waste liquids. - ProProfs

    Plant Organelle Word Bank Cell membraneChromatinEndoplasmic Reticulum  RoughNuclear membranePlasmodesmataCell wallCytoplasmEndoplasmic Reticulum SmoothNucleolusPeroxisomeCentrosomeGolgi BodiesMitochondriaNucleusRibosomesChloroplastsChlorophyll  Vacuoles Use the Plant Cell Organelle word bank as you work to identify the parts of the plant organelle diagram. Identify Organelle # 3:# 3 is modeled as a large membrane-bound space within the plant cell. It takes up much of the cell. It helps keep the shape of the cell, storing water and waste liquids.

    • Cell Membrane

    • Plasmodesmata

    • Rough Endoplasmic Reticulum

    • Golgi Bodies

    • Peroxisomes

    • Mitochondria

    • Cell Wall

    • Chloroplast

    • Smooth Endoplasmic Reticulum

    • Nucleus

    • Vacuole

    • Nucleolus

    • Ribosomes

    • Chlorophyll

    Correct Answer
    A. Vacuole
    Explanation
    The correct answer is Vacuole. The description provided matches the characteristics of a vacuole. Vacuoles are large membrane-bound spaces within plant cells that occupy a significant portion of the cell. They help maintain the shape of the cell and store water and waste materials.

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  • 19. 
    Identify the name of the numbered part of the microscope:  Identify # 3. - ProProfs

    Identify the name of the numbered part of the microscope:  Identify # 3.

    • Ocular/Eyepiece

    • Body Tube

    • Nosepiece

    • Low Power Objective

    • High Power Objective

    • Stage

    • Diaphragm

    • Mirror/Light source

    • Base

    • Inclination Joint

    • Aperture

    • Stage Clips

    • Arm

    • Fine focus adjustment

    • Coarse focus adjustment

    Correct Answer
    A. Nosepiece
    Explanation
    The numbered part of the microscope that is identified as #3 is the nosepiece.

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  • 20. 
    Identify the name of the numbered part of the microscope:  Identify #11 - ProProfs

    Identify the name of the numbered part of the microscope:  Identify #11

    • Ocular/Eyepiece

    • Body Tube

    • Nosepiece

    • Low Power Objective

    • High Power Objective

    • Stage

    • Diaphragm

    • Mirror/Light source

    • Base

    • Inclination Joint

    • Aperture

    • Stage Clips

    • Arm

    • Fine focus adjustment

    • Coarse focus adjustment

    Correct Answer
    A. Stage Clips
    Explanation
    The numbered part of the microscope being referred to in this question is #11, which is the Stage Clips. Stage clips are used to hold the slide in place on the stage of the microscope, ensuring that it does not move during observation or examination.

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  • 21. 

    Cell theory states:

    • • All living things are composed of cells. • Cells are the basic units of structure and function in living things. • All cells are made from other cells.

    • • All animals are composed of cells. • Cells are the basic units of structure and function in living things. • Cells are made from living and non-living matter.

    • • All plants and animals are composed of cells. • Cells are the basic units of structure and function in living things. • Cells are made from living and non-living matter.

    • • Not all living things are composed of cells. • Cells are the basic units of structure and function in plants and animals, not bacteria. • All cells are made from other cells.

    Correct Answer
    A. • All living things are composed of cells. • Cells are the basic units of structure and function in living things. • All cells are made from other cells.
    Explanation
    The given answer is correct because it accurately states the three main principles of the cell theory. According to the cell theory, all living things are composed of cells, which are the basic units of structure and function in living organisms. Additionally, the theory states that all cells arise from pre-existing cells through cell division. This answer aligns with these principles and accurately summarizes the cell theory.

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  • 22. 

    The green color pigment found in chloroplasts of plants is called______________

    • Chlorophyll

    • Peroxisomes

    • Ribosomes

    • Eukaryotes

    Correct Answer
    A. Chlorophyll
    Explanation
    Chlorophyll is the correct answer because it is the green pigment found in the chloroplasts of plants. It is essential for photosynthesis, the process by which plants convert sunlight into energy. Chlorophyll absorbs light energy and uses it to synthesize carbohydrates, providing energy for the plant. It is responsible for the green color of leaves and is crucial for plant growth and development.

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  • 23. 
    Plant Organelle Word Bank Cell membraneChromatinEndoplasmic Reticulum  RoughNuclear membranePlasmodesmataCell wallCytoplasmEndoplasmic Reticulum SmoothNucleolusPeroxisomeCentrosomeGolgi BodiesMitochondriaNucleusRibosomesChloroplastsChlorophyll  Vacuoles Use the Plant Cell Organelle word bank as you work to identify the parts of the plant organelle diagram. Identify Organelle # 6:# 6 is modeled as a thick, rigid membrane surrounding and framing the plant cell.  The cell wall will bonds with other cell walls to form the structure of the plant. - ProProfs

    Plant Organelle Word Bank Cell membraneChromatinEndoplasmic Reticulum  RoughNuclear membranePlasmodesmataCell wallCytoplasmEndoplasmic Reticulum SmoothNucleolusPeroxisomeCentrosomeGolgi BodiesMitochondriaNucleusRibosomesChloroplastsChlorophyll  Vacuoles Use the Plant Cell Organelle word bank as you work to identify the parts of the plant organelle diagram. Identify Organelle # 6:# 6 is modeled as a thick, rigid membrane surrounding and framing the plant cell.  The cell wall will bonds with other cell walls to form the structure of the plant.

    • Cell Membrane

    • Plasmodesma

    • Rough Endoplasmic Reticulum

    • Golgi Bodies

    • Peroxisome

    • Mitochondria

    • Cell Wall

    • Ribosomes

    • Smooth Endoplasmic Reticulum

    Correct Answer
    A. Cell Wall
    Explanation
    The correct answer is "Cell Wall". The description given in the question matches the characteristics of the cell wall. It is described as a thick, rigid membrane that surrounds and frames the plant cell. The cell wall is responsible for providing structural support to the plant cell and also helps in bonding with other cell walls to form the structure of the plant.

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  • 24. 
    Plant Organelle Word Bank Cell membraneChromatinEndoplasmic Reticulum  RoughNuclear membranePlasmodesmataCell wallCytoplasmEndoplasmic Reticulum SmoothNucleolusPeroxisomeCentrosomeGolgi BodiesMitochondriaNucleusRibosomesChloroplastsChlorophyll  Vacuoles Use the Plant Cell Organelle word bank as you work to identify the parts of the plant organelle diagram. Identify Organelle # 11:# 11 is modeled as a yellow ball with spikes radiating from it. It has a dense center with radiating tubes like a sun (star shape). The small tubes (microtubules) are made by this structure. This structure is important in cell division, separating genetic material into new plant cells. - ProProfs

    Plant Organelle Word Bank Cell membraneChromatinEndoplasmic Reticulum  RoughNuclear membranePlasmodesmataCell wallCytoplasmEndoplasmic Reticulum SmoothNucleolusPeroxisomeCentrosomeGolgi BodiesMitochondriaNucleusRibosomesChloroplastsChlorophyll  Vacuoles Use the Plant Cell Organelle word bank as you work to identify the parts of the plant organelle diagram. Identify Organelle # 11:# 11 is modeled as a yellow ball with spikes radiating from it. It has a dense center with radiating tubes like a sun (star shape). The small tubes (microtubules) are made by this structure. This structure is important in cell division, separating genetic material into new plant cells.

    • Cell Membrane

    • Plasmodesma

    • Rough Endoplasmic Reticulum

    • Golgi Bodies

    • Peroxisome

    • Mitochondria

    • Cell Wall

    • Ribosomes

    • Smooth Endoplasmic Reticulum

    • Centrosome

    Correct Answer
    A. Centrosome
    Explanation
    The description of organelle #11 as a yellow ball with spikes radiating from it and a dense center with radiating tubes like a sun (star shape) matches the structure of a centrosome. Centrosomes are responsible for cell division and play a crucial role in separating genetic material into new plant cells.

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  • 25. 
    Jane Goodall spent countless hours among the chimpanzees doing scientific research.  In her research, Jane learned that chimpanzees use stems or long blades of grass as tools to “fish” out a tasty meal from termite mounds.   How did Jane learn this about the chimpanzees?  This qualitative research is based on Jane  following the chimpanzees, taking notes and making careful  _______________ - ProProfs

    Jane Goodall spent countless hours among the chimpanzees doing scientific research.  In her research, Jane learned that chimpanzees use stems or long blades of grass as tools to “fish” out a tasty meal from termite mounds.   How did Jane learn this about the chimpanzees?  This qualitative research is based on Jane  following the chimpanzees, taking notes and making careful  _______________

    • Observations

    • Inferences

    • Predictions

    • Models

    Correct Answer
    A. Observations
    Explanation
    Jane Goodall learned about the chimpanzees' use of tools through her observations. She spent countless hours with the chimpanzees, closely watching their behavior and taking notes. Through her careful observations, she was able to gather data and evidence that supported the understanding that chimpanzees use stems or long blades of grass as tools to "fish" out food from termite mounds. This qualitative research method of observing and documenting behavior is a crucial aspect of scientific research.

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  • 26. 
    Identify the name of the numbered part of the microscope:  Identify # 2. - ProProfs

    Identify the name of the numbered part of the microscope:  Identify # 2.

    • Ocular/Eyepiece

    • Body Tube

    • Nosepiece

    • Low Power Objective

    • High Power Objective

    • Stage

    • Diaphragm

    • Mirror/Light source

    • Base

    • Inclination Joint

    • Aperture

    • Stage Clips

    • Arm

    • Fine focus adjustment

    • Coarse focus adjustment

    Correct Answer
    A. Body Tube
  • 27. 
    Identify the name of the numbered part of the microscope:  Identify #15 - ProProfs

    Identify the name of the numbered part of the microscope:  Identify #15

    • Ocular/Eyepiece

    • Body Tube

    • Nosepiece

    • Low Power Objective

    • High Power Objective

    • Stage

    • Diaphragm

    • Mirror/Light source

    • Base

    • Inclination Joint

    • Aperture

    • Stage Clips

    • Arm

    • Fine focus adjustment

    • Coarse focus adjustment

    Correct Answer
    A. Aperture
  • 28. 
    Identify the name of the numbered part of the microscope:  Identify #13 - ProProfs

    Identify the name of the numbered part of the microscope:  Identify #13

    • Ocular/Eyepiece

    • Body Tube

    • Nosepiece

    • Low Power Objective

    • High Power Objective

    • Stage

    • Diaphragm

    • Mirror/Light source

    • Base

    • Inclination Joint

    • Aperture

    • Stage Clips

    • Arm

    • Fine focus adjustment

    • Coarse focus adjustment

    Correct Answer
    A. Fine focus adjustment
  • 29. 
    Identify the name of the numbered part of the microscope:  Identify #14 - ProProfs

    Identify the name of the numbered part of the microscope:  Identify #14

    • Ocular/Eyepiece

    • Body Tube

    • Nosepiece

    • Low Power Objective

    • High Power Objective

    • Stage

    • Diaphragm

    • Mirror/Light source

    • Base

    • Inclination Joint

    • Aperture

    • Stage Clips

    • Arm

    • Fine focus adjustment

    • Coarse focus adjustment

    Correct Answer
    A. Coarse focus adjustment
  • 30. 

    In testing, measurements are:

    • Constant

    • Observations

    • Variable

    • Data

    Correct Answer
    A. Data
    Explanation
    In testing, measurements refer to the collection of data. Data is a set of values or observations that are obtained during the testing process. These values can be numerical or qualitative and are used to analyze and evaluate the performance, functionality, and quality of the system or software being tested. Therefore, the correct answer is "Data."

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  • 31. 
    Plant Organelle Word Bank Cell membraneChromatinEndoplasmic Reticulum  RoughNuclear membranePlasmodesmataCell wallCytoplasmEndoplasmic Reticulum SmoothNucleolusPeroxisomeCentrosomeGolgi BodiesMitochondriaNucleusRibosomesChloroplastsChlorophyll  Vacuoles Use the Plant Cell Organelle word bank as you work to identify the parts of the plant organelle diagram. Identify Organelle # 14:# 14 is modeled as a tiny, black dot inside of the purple sphere. This structure is made up of DNA (the chromosomes) that contains the cells’ genetic material. - ProProfs

    Plant Organelle Word Bank Cell membraneChromatinEndoplasmic Reticulum  RoughNuclear membranePlasmodesmataCell wallCytoplasmEndoplasmic Reticulum SmoothNucleolusPeroxisomeCentrosomeGolgi BodiesMitochondriaNucleusRibosomesChloroplastsChlorophyll  Vacuoles Use the Plant Cell Organelle word bank as you work to identify the parts of the plant organelle diagram. Identify Organelle # 14:# 14 is modeled as a tiny, black dot inside of the purple sphere. This structure is made up of DNA (the chromosomes) that contains the cells’ genetic material.

    • Cell Membrane

    • Plasmodesmata

    • Rough Endoplasmic Reticulum

    • Golgi Bodies

    • Peroxisomes

    • Mitochondria

    • Cell Wall

    • Chloroplast

    • Smooth Endoplasmic Reticulum

    • Chromatin

    Correct Answer
    A. Chromatin
    Explanation
    Organelle #14 is represented as a tiny, black dot inside of the purple sphere. This structure is made up of DNA (the chromosomes) that contains the cells' genetic material. Chromatin is the correct answer because it fits this description.

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  • 32. 
    Plant Organelle Word Bank Cell membraneChromatinEndoplasmic Reticulum  RoughNuclear membranePlasmodesmataCell wallCytoplasmEndoplasmic Reticulum SmoothNucleolusPeroxisomeCentrosomeGolgi BodiesMitochondriaNucleusRibosomesChloroplastsChlorophyll  Vacuoles Use the Plant Cell Organelle word bank as you work to identify the parts of the plant organelle diagram. Identify Organelle # 9:# 9 is modeled as a bean-like, oval structure with a double membrane that has an inner membrane that is folded many times.  This organelle is the energy power pack of the cell.  In photosynthesis this is the organelle that breaks down the sugars and stores the energy in the ATP.The ATP is the energy exchange for cells, storing and releasing energy as needed. - ProProfs

    Plant Organelle Word Bank Cell membraneChromatinEndoplasmic Reticulum  RoughNuclear membranePlasmodesmataCell wallCytoplasmEndoplasmic Reticulum SmoothNucleolusPeroxisomeCentrosomeGolgi BodiesMitochondriaNucleusRibosomesChloroplastsChlorophyll  Vacuoles Use the Plant Cell Organelle word bank as you work to identify the parts of the plant organelle diagram. Identify Organelle # 9:# 9 is modeled as a bean-like, oval structure with a double membrane that has an inner membrane that is folded many times.  This organelle is the energy power pack of the cell.  In photosynthesis this is the organelle that breaks down the sugars and stores the energy in the ATP.The ATP is the energy exchange for cells, storing and releasing energy as needed.

    • Cell Membrane

    • Plasmodesma

    • Rough Endoplasmic Reticulum

    • Golgi Bodies

    • Peroxisomes

    • Mitochondria

    • Cell Wall

    • Chloroplast

    • Smooth Endoplasmic Reticulum

    • Chromatin

    • Nucleolus

    • Chlorophyll

    Correct Answer
    A. Mitochondria
    Explanation
    Organelle #9 is described as a bean-like, oval structure with a double membrane that has an inner membrane folded many times. This organelle is known as the mitochondria, which is responsible for producing energy in the form of ATP through cellular respiration. The breakdown of sugars and storage of energy in ATP mentioned in the explanation further supports the identification of organelle #9 as mitochondria.

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  • 33. 
    Plant Organelle Word Bank Cell membraneChromatinEndoplasmic Reticulum  RoughNuclear membranePlasmodesmataCell wallCytoplasmEndoplasmic Reticulum SmoothNucleolusPeroxisomeCentrosomeGolgi BodiesMitochondriaNucleusRibosomesChloroplastsChlorophyll  Vacuoles Use the Plant Cell Organelle word bank as you work to identify the parts of the plant organelle diagram. Identify Organelle # 8:# 8 is modeled as a small, oval, grey structure. These structures help control chemical change in the cells. They change fatty acids to sugars, and help with photosynthesis. - ProProfs

    Plant Organelle Word Bank Cell membraneChromatinEndoplasmic Reticulum  RoughNuclear membranePlasmodesmataCell wallCytoplasmEndoplasmic Reticulum SmoothNucleolusPeroxisomeCentrosomeGolgi BodiesMitochondriaNucleusRibosomesChloroplastsChlorophyll  Vacuoles Use the Plant Cell Organelle word bank as you work to identify the parts of the plant organelle diagram. Identify Organelle # 8:# 8 is modeled as a small, oval, grey structure. These structures help control chemical change in the cells. They change fatty acids to sugars, and help with photosynthesis.

    • Cell Membrane

    • Plasmodesma

    • Rough Endoplasmic Reticulum

    • Golgi Bodies

    • Peroxisomes

    • Mitochondria

    • Cell Wall

    • Chloroplast

    • Smooth Endoplasmic Reticulum

    • Nucleus

    • Nuclear Membrane

    • Nucleolus

    • Chlorophyll

    Correct Answer
    A. Peroxisomes
    Explanation
    Organelle #8 is described as a small, oval, grey structure that helps control chemical change in the cells. It also converts fatty acids to sugars and assists in photosynthesis. Based on these characteristics, the correct answer is Peroxisomes.

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  • 34. 

    Which scientist concluded that all animals were made of cells?

    • Theodor Schwann concluded that all animals are made up of cells.

    • Matthias Schleiden concluded that all animals are made up of cells.

    • Rudolf Virchow concluded that all animals are made up of cells.

    • Robert Remak concluded that all animals are made up of cells.

    Correct Answer
    A. Theodor Schwann concluded that all animals are made up of cells.
    Explanation
    The correct answer is Theodor Schwann. He concluded that all animals are made up of cells.

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  • 35. 

    Which scientist concluded all plants are made of cells?

    • Matthias Schleiden concluded that all plants are made of cells.

    • Theodor Schwann concluded that all plants are made of cells.

    • Rudolf Virchow concluded that all plants are made of cells.

    • Robert Remak concluded that all plants are made of cells.

    Correct Answer
    A. Matthias Schleiden concluded that all plants are made of cells.
    Explanation
    Matthias Schleiden concluded that all plants are made of cells. This conclusion is based on his extensive research and observations of plant tissues. Schleiden's work laid the foundation for the cell theory, which states that all living organisms are composed of cells. He specifically focused on plant cells and was able to identify their key characteristics and functions. Through his research, Schleiden demonstrated that cells are the fundamental building blocks of plants and that they are responsible for their growth and development. His findings revolutionized the field of biology and our understanding of the structure and function of plants.

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  • 36. 

    What is a law?

    • A statement that describes nature

    • A statement that answers questions

    • A statement that describes outcomes

    • A statement that describes results

    Correct Answer
    A. A statement that describes nature
    Explanation
    A law is a statement that describes nature, meaning it is a general principle or rule that explains how things in the natural world behave or interact. Laws are based on observations and experiments and are used to predict and understand the behavior of various phenomena. They provide a framework for understanding the fundamental principles and processes that govern the world around us.

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  • 37. 

    A friend claims that a stainless steel water bottle is better at keeping cool water cool longer than a plastic water bottle because the stainless steel insulates the cool temperature of the water. What kind of data do you need to collect to carry out this experiment?

    • Changes in the water temperature over time.

    • The difference in melting points between stainless steel vs. plastic.

    • Changes in the weather.

    • Changes in the moisture in the room.

    Correct Answer
    A. Changes in the water temperature over time.
    Explanation
    To determine whether a stainless steel water bottle is better at keeping cool water cool longer than a plastic water bottle, the most relevant data to collect would be changes in the water temperature over time. By measuring the temperature of the water in both bottles at regular intervals, we can compare how quickly each bottle allows the water to warm up. This data will provide evidence to support or refute the friend's claim about the insulating properties of stainless steel. The other options, such as melting points, weather changes, and moisture in the room, are not directly related to the cooling performance of the bottles.

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  • 38. 
    This slide shows a cross section of onion skin cells.Choose the answer that correctly identifies two parts of the onion skin cell that are visible in this slide.  - ProProfs

    This slide shows a cross section of onion skin cells.Choose the answer that correctly identifies two parts of the onion skin cell that are visible in this slide. 

    • The cell wall and nucleus are easily visible.

    • The cell membrane and nucleus are easily visible.

    • The cell wall and mitochondria are easily visible.

    • The cell membrane and nucleolus are easily visible.

    Correct Answer
    A. The cell wall and nucleus are easily visible.
    Explanation
    In this slide, the two parts of the onion skin cell that are easily visible are the cell wall and the nucleus. The cell wall is the outermost layer of the cell and provides support and protection. The nucleus is the control center of the cell and contains the DNA. Both of these structures can be clearly seen in the cross section of the onion skin cells.

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  • 39. 
    Plant Organelle Word Bank Cell membraneChromatinEndoplasmic Reticulum  RoughNuclear membranePlasmodesmataCell wallCytoplasmEndoplasmic Reticulum SmoothNucleolusPeroxisomeCentrosomeGolgi BodiesMitochondriaNucleusRibosomesChloroplastsChlorophyll  Vacuoles Use the Plant Cell Organelle word bank as you work to identify the parts of the plant organelle diagram. Identify Organelle # 5:# 5 is modeled as a small tube-like organelles that are like channels in the cell wall, crossing between plant cells. These tubes cross between plant cells allowing them to transport and communicate between each other.   - ProProfs

    Plant Organelle Word Bank Cell membraneChromatinEndoplasmic Reticulum  RoughNuclear membranePlasmodesmataCell wallCytoplasmEndoplasmic Reticulum SmoothNucleolusPeroxisomeCentrosomeGolgi BodiesMitochondriaNucleusRibosomesChloroplastsChlorophyll  Vacuoles Use the Plant Cell Organelle word bank as you work to identify the parts of the plant organelle diagram. Identify Organelle # 5:# 5 is modeled as a small tube-like organelles that are like channels in the cell wall, crossing between plant cells. These tubes cross between plant cells allowing them to transport and communicate between each other.  

    • Cell Membrane

    • Plasmodesmata

    • Rough Endoplasmic Reticulum

    • Golgi Bodies

    • Peroxisomes

    • Mitochondria

    • Cell Wall

    • Chloroplast

    • Smooth Endoplasmic Reticulum

    • Nucleus

    • Nuclear Membrane

    • Nucleolus

    • Chlorophyll

    Correct Answer
    A. Plasmodesmata
    Explanation
    Plasmodesmata are small tube-like organelles that are like channels in the cell wall, crossing between plant cells. These tubes allow for transport and communication between plant cells, allowing molecules, nutrients, and signals to move between cells.

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  • 40. 

    Identify the numeral for kilo

    • 100

    • 10,000

    • 1,000

    • 10

    Correct Answer
    A. 1,000
    Explanation
    The numeral for kilo is 1,000. Kilo is a prefix that represents a factor of 1,000 in the metric system. So, when we see the term "kilo" in a numerical context, it means multiplying the number by 1,000. In this case, the correct answer is 1,000 because it represents the numeral for kilo.

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  • 41. 
    Plant Organelle Word Bank Cell membraneChromatinEndoplasmic Reticulum  RoughNuclear membranePlasmodesmataCell wallCytoplasmEndoplasmic Reticulum SmoothNucleolusPeroxisomeCentrosomeGolgi BodiesMitochondriaNucleusRibosomesChloroplastsChlorophyll  Vacuoles Use the Plant Cell Organelle word bank as you work to identify the parts of the plant organelle diagram.Identify Organelle # 4:# 4 is modeled as a green (because it contains chlorophyll), bean-shaped organelle. Photosynthesis takes place in this organelle, changing sunlight to chemical energy (food) for the plant. - ProProfs

    Plant Organelle Word Bank Cell membraneChromatinEndoplasmic Reticulum  RoughNuclear membranePlasmodesmataCell wallCytoplasmEndoplasmic Reticulum SmoothNucleolusPeroxisomeCentrosomeGolgi BodiesMitochondriaNucleusRibosomesChloroplastsChlorophyll  Vacuoles Use the Plant Cell Organelle word bank as you work to identify the parts of the plant organelle diagram.Identify Organelle # 4:# 4 is modeled as a green (because it contains chlorophyll), bean-shaped organelle. Photosynthesis takes place in this organelle, changing sunlight to chemical energy (food) for the plant.

    • Cell Membrane

    • Plasmodesma

    • Rough Endoplasmic Reticulum

    • Golgi Bodies

    • Peroxisome

    • Mitochondria

    • Cell Wall

    • Chloroplasts

    • Smooth Endoplasmic Reticulum

    • Centrosome

    • Chlorophyll

    Correct Answer
    A. Chloroplasts
    Explanation
    Organelle #4 is chloroplasts. Chloroplasts are green, bean-shaped organelles that contain chlorophyll. They are responsible for conducting photosynthesis, which is the process of converting sunlight into chemical energy (food) for the plant.

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  • 42. 
    Plant Organelle Word Bank Cell membraneChromatinEndoplasmic Reticulum  RoughNuclear membranePlasmodesmataCell wallCytoplasmEndoplasmic Reticulum SmoothNucleolusPeroxisomeCentrosomeGolgi BodiesMitochondriaNucleusRibosomesChloroplastsChlorophyll  Vacuoles Use the Plant Cell Organelle word bank as you work to identify the parts of the plant organelle diagram. Identify Organelle # 2:#2 is modeled as small, black, grainy structure made in the nucleolus. There are two kinds. One kind floats in cytoplasm. A second kind of these are found in another structure. - ProProfs

    Plant Organelle Word Bank Cell membraneChromatinEndoplasmic Reticulum  RoughNuclear membranePlasmodesmataCell wallCytoplasmEndoplasmic Reticulum SmoothNucleolusPeroxisomeCentrosomeGolgi BodiesMitochondriaNucleusRibosomesChloroplastsChlorophyll  Vacuoles Use the Plant Cell Organelle word bank as you work to identify the parts of the plant organelle diagram. Identify Organelle # 2:#2 is modeled as small, black, grainy structure made in the nucleolus. There are two kinds. One kind floats in cytoplasm. A second kind of these are found in another structure.

    • Cell Membrane

    • Plasmodesmata

    • Rough Endoplasmic Reticulum

    • Golgi Bodies

    • Peroxisomes

    • Mitochondria

    • Cell Wall

    • Chloroplast

    • Smooth Endoplasmic Reticulum

    • Nucleus

    • Nuclear Membrane

    • Nucleolus

    • Ribosomes

    Correct Answer
    A. Ribosomes
    Explanation
    Ribosomes are small, black, grainy structures that are synthesized in the nucleolus. There are two types of ribosomes: free ribosomes that float in the cytoplasm, and bound ribosomes that are attached to the rough endoplasmic reticulum. Therefore, ribosomes fit the description given in the question and are the correct answer.

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  • 43. 
    Plant Organelle Word Bank Cell membraneChromatinEndoplasmic Reticulum  RoughNuclear membranePlasmodesmataCell wallCytoplasmEndoplasmic Reticulum SmoothNucleolusPeroxisomeCentrosomeGolgi BodiesMitochondriaNucleusRibosomesChloroplastsChlorophyll  Vacuoles Use the Plant Cell Organelle word bank as you work to identify the parts of the plant organelle diagram. Identify Organelle # 1:#1 is modeled as the thin, blue ribbon-like, non-grainy structure. - ProProfs

    Plant Organelle Word Bank Cell membraneChromatinEndoplasmic Reticulum  RoughNuclear membranePlasmodesmataCell wallCytoplasmEndoplasmic Reticulum SmoothNucleolusPeroxisomeCentrosomeGolgi BodiesMitochondriaNucleusRibosomesChloroplastsChlorophyll  Vacuoles Use the Plant Cell Organelle word bank as you work to identify the parts of the plant organelle diagram. Identify Organelle # 1:#1 is modeled as the thin, blue ribbon-like, non-grainy structure.

    • Cell Membrane

    • Plasmodesmata

    • Rough Endoplasmic Reticulum

    • Golgi Bodies

    • Peroxisomes

    • Mitochondria

    • Cell Wall

    • Chloroplast

    • Smooth Endoplasmic Reticulum

    • Nucleus

    • Nuclear Membrane

    • Nucleolus

    • Ribosomes

    Correct Answer
    A. Smooth Endoplasmic Reticulum
  • 44. 
    Plant Organelle Word Bank Cell membraneChromatinEndoplasmic Reticulum  RoughNuclear membranePlasmodesmataCell wallCytoplasmEndoplasmic Reticulum SmoothNucleolusPeroxisomeCentrosomeGolgi BodiesMitochondriaNucleusRibosomesChloroplastsChlorophyll  Vacuoles Use the Plant Cell Organelle word bank as you work to identify the parts of the plant organelle diagram.Identify Organelle # 16:# 16 is modeled as the thick, blue, folded, snaking-ribbon-like organelle that is a continuation of the nuclear membrane.  It is covered with tiny grains of protein. This ribbon-like structure produces proteins and transports materials throughout the cell. - ProProfs

    Plant Organelle Word Bank Cell membraneChromatinEndoplasmic Reticulum  RoughNuclear membranePlasmodesmataCell wallCytoplasmEndoplasmic Reticulum SmoothNucleolusPeroxisomeCentrosomeGolgi BodiesMitochondriaNucleusRibosomesChloroplastsChlorophyll  Vacuoles Use the Plant Cell Organelle word bank as you work to identify the parts of the plant organelle diagram.Identify Organelle # 16:# 16 is modeled as the thick, blue, folded, snaking-ribbon-like organelle that is a continuation of the nuclear membrane.  It is covered with tiny grains of protein. This ribbon-like structure produces proteins and transports materials throughout the cell.

    • Cell Membrane

    • Plasmodesmata

    • Rough Endoplasmic Reticulum

    • Golgi Bodies

    • Peroxisomes

    • Mitochondria

    • Cell Wall

    • Chloroplast

    • Smooth Endoplasmic Reticulum

    • Nucleus

    • Nuclear Membrane

    • Nucleolus

    • Ribosomes

    Correct Answer
    A. Rough Endoplasmic Reticulum
    Explanation
    Organelle #16 is described as a folded, snaking-ribbon-like organelle that is a continuation of the nuclear membrane and is covered with tiny grains of protein. This organelle is responsible for producing proteins and transporting materials throughout the cell. The organelle that fits this description is the Rough Endoplasmic Reticulum, as it has a folded structure, is connected to the nuclear membrane, and is covered in ribosomes, which are the tiny grains of protein.

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  • 45. 

    A factor that may change in response to the test factor.

    • Variable

    • Independent variable

    • Dependent variable

    • Data

    Correct Answer
    A. Dependent variable
    Explanation
    A dependent variable is a factor that may change in response to the test factor or the independent variable. In an experiment, the independent variable is manipulated or controlled by the researcher, and the dependent variable is the outcome or result that is measured or observed. The dependent variable is dependent on the independent variable, meaning that it is influenced or affected by the independent variable. Therefore, the correct answer is dependent variable.

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  • 46. 

    Lenses in microscopes magnify an object by _____________

    • Lenses in microscopes magnify an object by bending the light that passes through them.

    • Lenses in microscopes magnify an object by flattening the light that passes through them.

    • Lenses in microscopes magnify an object by filtering the light that passes through them.

    • Lenses in microscopes magnify an object by increasing the amount of light that passes through them.

    Correct Answer
    A. Lenses in microscopes magnify an object by bending the light that passes through them.
    Explanation
    Lenses in microscopes magnify an object by bending the light that passes through them. When light passes through a lens, it is refracted, or bent, causing the light rays to converge or diverge. This bending of light allows the lens to focus the image and magnify it. By manipulating the curvature of the lens, the microscope can adjust the amount of magnification. Therefore, the correct answer is that lenses in microscopes magnify an object by bending the light that passes through them.

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  • 47. 
    Plant Organelle Word Bank Cell membraneChromatinEndoplasmic Reticulum  RoughNuclear membranePlasmodesmataCell wallCytoplasmEndoplasmic Reticulum SmoothNucleolusPeroxisomeCentrosomeGolgi BodiesMitochondriaNucleusRibosomesChloroplastsChlorophyll  Vacuoles Use the Plant Cell Organelle word bank as you work to identify the parts of the plant organelle diagram.Identify Organelle # 17:# 17  is the jellylike material outside the cell nucleus in which the organelles are located. - ProProfs

    Plant Organelle Word Bank Cell membraneChromatinEndoplasmic Reticulum  RoughNuclear membranePlasmodesmataCell wallCytoplasmEndoplasmic Reticulum SmoothNucleolusPeroxisomeCentrosomeGolgi BodiesMitochondriaNucleusRibosomesChloroplastsChlorophyll  Vacuoles Use the Plant Cell Organelle word bank as you work to identify the parts of the plant organelle diagram.Identify Organelle # 17:# 17  is the jellylike material outside the cell nucleus in which the organelles are located.

    • Cell Membrane

    • Plasmodesma

    • Rough Endoplasmic Reticulum

    • Golgi Bodies

    • Peroxisomes

    • Mitochondria

    • Cell Wall

    • Chloroplast

    • Smooth Endoplasmic Reticulum

    • Chromatin

    • Cytoplasm

    • Chlorophyll

    Correct Answer
    A. Cytoplasm
    Explanation
    The correct answer for Organelle #17 is Cytoplasm because it is the jelly-like material outside the cell nucleus where the organelles are located.

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  • 48. 
    Plant Organelle Word Bank Cell membraneChromatinEndoplasmic Reticulum  RoughNuclear membranePlasmodesmataCell wallCytoplasmEndoplasmic Reticulum SmoothNucleolusPeroxisomeCentrosomeGolgi BodiesMitochondriaNucleusRibosomesChloroplastsChlorophyll  Vacuoles Use the Plant Cell Organelle word bank as you work to identify the parts of the plant organelle diagram. Identify Organelle # 15:# 15 is modeled as the outer covering of the purple sphere. This structure surrounds the purple sphere, separating it from the other organelles and protecting it. - ProProfs

    Plant Organelle Word Bank Cell membraneChromatinEndoplasmic Reticulum  RoughNuclear membranePlasmodesmataCell wallCytoplasmEndoplasmic Reticulum SmoothNucleolusPeroxisomeCentrosomeGolgi BodiesMitochondriaNucleusRibosomesChloroplastsChlorophyll  Vacuoles Use the Plant Cell Organelle word bank as you work to identify the parts of the plant organelle diagram. Identify Organelle # 15:# 15 is modeled as the outer covering of the purple sphere. This structure surrounds the purple sphere, separating it from the other organelles and protecting it.

    • Cell Membrane

    • Plasmodesma

    • Rough Endoplasmic Reticulum

    • Golgi Bodies

    • Peroxisomes

    • Mitochondria

    • Cell Wall

    • Chloroplast

    • Smooth Endoplasmic Reticulum

    • Chromatin

    • Nuclear Membrane

    Correct Answer
    A. Nuclear Membrane
    Explanation
    The given description states that organelle #15 is modeled as the outer covering of the purple sphere, separating it from other organelles and protecting it. The organelle that fits this description is the nuclear membrane. The nuclear membrane surrounds the nucleus, separating it from the cytoplasm and other organelles. It acts as a protective barrier for the nucleus and regulates the movement of molecules in and out of the nucleus.

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  • 49. 
    Give an example of an inference you made or could have made when examining the cheek cell slides: - ProProfs

    Give an example of an inference you made or could have made when examining the cheek cell slides:

    • The cheek cells do not have a cell wall.

    • The nucleus of the cheek cells can be identified because they look like a dark spot in each cell.

    • The nucleus of cheek cells tend to be in the center of the cell.

    • All of the above.

    Correct Answer
    A. All of the above.
    Explanation
    The correct answer is "All of the above" because the given statements are all valid inferences that can be made when examining the cheek cell slides. The absence of a cell wall in cheek cells can be inferred from the statement "The cheek cells do not have a cell wall." The identification of the nucleus in cheek cells as a dark spot in each cell can be inferred from the statement "The nucleus of the cheek cells can be identified because they look like a dark spot in each cell." Lastly, the statement "The nucleus of cheek cells tend to be in the center of the cell" implies that the nucleus is typically located in the center of the cell.

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Quiz Review Timeline (Updated): Jan 13, 2025 +

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  • Jan 13, 2025
    Quiz Edited by
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  • Dec 10, 2017
    Quiz Created by
    Rhaveno

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