7th Grade End Of Units Test Practice

45 Questions | Total Attempts: 43

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7th Grade End Of Units Test Practice

Questions and Answers
  • 1. 
    Where is DNA found in a bacterial cell?
    • A. 

      In a bacterial cell DNA is found in the cytoplasm.

    • B. 

      In a bacterial cell DNA is found in the nucleus.

    • C. 

      In a bacterial cell DNA is found in the nucleolus.

    • D. 

      In a bacterial cell DNA is found in the centrosomes.

  • 2. 
    Cell theory states:
    • 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.

    • B. 

      • 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.

    • C. 

      • 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.

    • D. 

      • 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.

  • 3. 
    Which scientist concluded that all animals were made of cells?
    • A. 

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

    • B. 

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

    • C. 

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

    • D. 

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

  • 4. 
    Which scientist concluded all plants are made of cells?
    • A. 

      Matthias Schleiden concluded that all plants are made of cells.

    • B. 

      Theodor Schwann concluded that all plants are made of cells.

    • C. 

      Rudolf Virchow concluded that all plants are made of cells.

    • D. 

      Robert Remak concluded that all plants are made of cells.

  • 5. 
    The green color pigment found in chloroplasts of plants is called______________
    • A. 

      Chlorophyll

    • B. 

      Peroxisomes

    • C. 

      Ribosomes

    • D. 

      Eukaryotes

  • 6. 
    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  _______________
    • A. 

      Observations

    • B. 

      Inferences

    • C. 

      Predictions

    • D. 

      Models

  • 7. 
    Suppose a friend claims that ceiling fans are better at cooling than air conditioning because they cool faster. What kind of data do you need to collect to carry out this experiment?
    • A. 

      Changes in air temperature over time.

    • B. 

      Difference in the kilowatts used (electricity) used for fan vs. air conditioning.

    • C. 

      Changes in the weather.

    • D. 

      Changes in the moisture in the room.

  • 8. 
    One day, while watching the chimpanzees, Jane Goodall saw something peculiar. She watched as a chimpanzee looked into a hollow in a tree. The chimp picked off a handful of leaves from the tree and chewed on them. Then the chimp took the leaves out of its mouth and pushed the leaves into the tree hollow.  When the chimp pulled the leaves back out, Jane saw the leaves sparkled with a gleam of water. The chimp then put the leaves back in its mouth. What was the chimp doing?  How did Jane think through this experience?
    • A. 

      The chimp was getting water by creating a leaf sponge. Jane observed the chimp then reasoned why the chimp acted as it did. Jane inferred, explained the meaning behind the observation.

    • B. 

      The chimp is hiding the leaf like squirrels hide tree nuts. Jane observed the chimp then based on observation, classified its behavior as part of a pattern.

  • 9. 
    What is meant by saying that a hypothesis is testable?
    • A. 

      Experimenters gather evidence that either supports or disproves the hypothesis.

    • B. 

      Experimenters construct models that can repeat the process.

    • C. 

      The hypothesis must have questions for further study.

    • D. 

      The outcome of the test must be related to the hypothesis.

  • 10. 
    Use the image of the microscope to answer this question. A thin red arrow points to the part of the microscope you need to identify. (Too zoom the image, either double tap or use 2 fingers spread to zoom) The thin red arrow points to __________________
    • A. 

      Nosepiece

    • B. 

      Body Tube

    • C. 

      Stage

    • D. 

      Diaphragm

  • 11. 
    Use the image of the microscope to answer this question. A thin red arrow points to the part of the microscope you need to identify. (Too zoom the image, either double tap or use 2 fingers spread to zoom) The thin red arrow points to __________________
    • A. 

      Arm

    • B. 

      Body Tube

    • C. 

      Revolving nosepiece

    • D. 

      Diaphragm

  • 12. 
    Use the image of the microscope to answer this question. A thin red arrow points to the part of the microscope you need to identify. (Too zoom the image, either double tap or use 2 fingers spread to zoom) The thin red arrow points to __________________
    • A. 

      High Power Lens

    • B. 

      Low Power Lens

    • C. 

      Revolving nosepiece

    • D. 

      Diaphragm

  • 13. 
    Use the image of the microscope to answer this question. A thin red arrow points to the part of the microscope you need to identify. (Too zoom the image, either double tap or use 2 fingers spread to zoom) The thin red arrow points to __________________
    • A. 

      Ocular (eyepiece)

    • B. 

      Body tube

    • C. 

      Revolving nosepiece

    • D. 

      Diaphragm

  • 14. 
    Identify which examples are qualitative observation/research.
    • A. 

      There are 6 robin eggs in the nest.

    • B. 

      The robin's nest is 6.5 feet above the ground.

    • C. 

      The robin eggs are blue.

    • D. 

      Robin eggs take 14 to 16 days to hatch.

  • 15. 
    In an experiment, what is: the manipulated (independent) variable? 
    • A. 

      The factor being tested in the experiment.

    • B. 

      The variable that responds to the factor being tested.

    • C. 

      The variable that is controlled.

    • D. 

      The variable that is dependent on the factor being tested.

  • 16. 
    In an experiment, what is: the responding (dependent) variable? 
    • A. 

      Those items measured in the experiment that is affected by the test factor.

    • B. 

      The control factor.

    • C. 

      The manipulated variable.

    • D. 

      The independent variable.

  • 17. 
    If the ocular lens has a power of 4X and the objective you are using has a power of 10X, what is your power of magnification?
    • A. 

      The magnification is 40X

    • B. 

      The magnification is 400X

    • C. 

      The magnification is 20X

    • D. 

      The magnification is 100X

  • 18. 
    If you are looking at the "e" through the microscope and you push your slide to the left, which way does the e in the microscope move? 
    • A. 

      It moves to the right.

    • B. 

      It moves to the left.

    • C. 

      It moves away from you.

    • D. 

      It moves toward you.

  • 19. 
    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. (Too zoom the image, either double tap or use 2 fingers spread to zoom)
    • A. 

      The cell wall and nucleus are easily visible.

    • B. 

      The cell membrane and nucleus are easily visible.

    • C. 

      The cell wall and mitochondria are easily visible.

    • D. 

      The cell membrane and nucleolus are easily visible.

  • 20. 
    What are cells?
    • A. 

      Cells are the basic units of structure and function in living things.

    • B. 

      Cells are tiny structures filled with empty spaces.

    • C. 

      Cells are the basic units of living things.

    • D. 

      Cells are animalcules, tiny moving organisms.

  • 21. 
    What are predictions based on?
    • A. 

      Predicting is forecasting based on past experience or evidence.

    • B. 

      Predicting is guessing the data measurements.

    • C. 

      Predicting is making a hypothesis.

    • D. 

      Predicting is evaluating the evidence and outcome of testing.

  • 22. 
    What is a model?
    • A. 

      A representation, a copy, replica of a complex object or process.

    • B. 

      A prediction of what can occur.

    • C. 

      A piece of a large sample.

    • D. 

      A sample solution.

  • 23. 
    What is an experiment?
    • A. 

      A test/trial to answer a problem or question.

    • B. 

      A guess to discover the answer to a problem question.

    • C. 

      An example to discover something new.

    • D. 

      A solution to test or try.

  • 24. 
    What is an observation?
    • A. 

      Information gathered by ones senses.

    • B. 

      A way of thinking and reasoning.

    • C. 

      Information gathered through research.

    • D. 

      Information gathered through sampling.

  • 25. 
    What is classifying?
    • A. 

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

    • B. 

      Classifying is creating models representing complex ideas or objects.

    • C. 

      Classifying is predicting what will happen in an experiment.

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