Cell Organelles - Warm Up 1
Welcome to the electronic frontier classroom of the future. Most of the organelles and other cell parts are common to all eukaryotic cellsl. However, bacteria and plant cells have different structures which are extremely important to plant cell physiology.
This warm up permits you an unlimited number of attempts to increase your test-taking and learning skills. As a bonus, each attempts randomly generates new questions and answers.
Questions and Answers
- 1.
Cellulose is found in the cell walls of all but the _____cells.
- A.
Animal
- B.
Bacteria
- C.
Fungi
- D.
Plant
- E.
Protists
Correct Answer
A. AnimalExplanation
Cellulose is a complex carbohydrate that provides structural support to plant cells. It is a major component of the cell walls in plants, but it is not found in the cell walls of animal cells. Animal cells have a different type of cell wall called the extracellular matrix, which does not contain cellulose. Therefore, the correct answer is animal.Rate this question:
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- 2.
Cytosol has no single function and yet is the site of multiple cell processes.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The statement is true because cytosol, the fluid component of the cytoplasm, does not have a single specific function but rather serves as a site for various cellular processes. It acts as a medium for metabolic reactions, provides a platform for cellular signaling and communication, and plays a role in the transport of molecules within the cell. Additionally, cytosol contains numerous enzymes, ions, and other molecules that are essential for the functioning of the cell. Therefore, despite not having a single defined function, cytosol is involved in multiple important processes within the cell.Rate this question:
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- 3.
In animal cells, _____ is a(n) membrane bound sac that plays a role in intracellular digestion. These may be very small.
- A.
Chloroplast
- B.
Centrioles
- C.
Vacuoles
- D.
Golgi Apparatus
- E.
Nucleoplasm
Correct Answer
C. VacuolesExplanation
Vacuoles are membrane-bound sacs found in animal cells that play a role in intracellular digestion. They are responsible for storing and breaking down various molecules, such as nutrients and waste products. Vacuoles can vary in size, with some being very small.Rate this question:
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- 4.
_____ are also called microbodies are organelles that are found virtually in all eukaryotic cells. They are involved in the catabolism of long fatty acids.
- A.
Peroxisome
- B.
Centrosome
- C.
Rough Endoplasmic Reticulum
- D.
Cristae
- E.
Nucleoid
Correct Answer
A. PeroxisomeExplanation
Peroxisomes are organelles found in eukaryotic cells that are involved in the breakdown of long fatty acids. They are also known as microbodies and are present in virtually all eukaryotic cells.Rate this question:
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- 5.
The _____ is the semi-permeable membrane surrounding the cell vacuole, and its job is to separate the fluid filled vacuole from surrounding cytoplasm.
- A.
Cell Wall
- B.
Capsule
- C.
Tonoplast
- D.
Endosome
- E.
Nuclear Pore
Correct Answer
C. TonoplastExplanation
The tonoplast is the correct answer because it is the semi-permeable membrane that surrounds the cell vacuole. Its main function is to separate the fluid-filled vacuole from the surrounding cytoplasm, maintaining the integrity and composition of the vacuole.Rate this question:
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- 6.
The _____ synthesis of numerous carbon compounds or carbohydrates. They are very important during growth because they help to synthesis new cell walls.
- A.
Leucoplast
- B.
Glyoxysome
- C.
Cell envelope
- D.
Plasmodesmata
- E.
Plasma Membrane
Correct Answer
B. GlyoxysomeExplanation
Glyoxysomes are specialized organelles found in plant cells that are involved in the synthesis of numerous carbon compounds or carbohydrates. They are particularly important during growth because they help in the synthesis of new cell walls. Glyoxysomes contain enzymes that are responsible for converting stored lipids into carbohydrates, which can then be used for energy and building cell walls. Therefore, glyoxysomes play a crucial role in plant growth and development.Rate this question:
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- 7.
Chromoplasts are found in which of the following structures? They are the organelle responsible for the structure's distinctive colors.(HINT: this is a multiple answer question.)
- A.
Fruit
- B.
Flowers
- C.
Roots
- D.
Leaves
- E.
Aging Leaves
- F.
Human skin
- G.
Seeds
- H.
Stressed Leaves
Correct Answer(s)
A. Fruit
B. Flowers
C. Roots
D. Leaves
E. Aging Leaves
G. Seeds
H. Stressed LeavesExplanation
Chromoplasts are found in fruit, flowers, roots, leaves, aging leaves, seeds, and stressed leaves. These organelles are responsible for the distinctive colors seen in these structures.Rate this question:
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- 8.
_____ is a lash-like appendage that protrudes from the cell body of certain prokaryotic and eukaryotic cells.
- A.
Cilia
- B.
Flagella
- C.
Pilus
- D.
Microvilli
- E.
Microfilament
Correct Answer
B. FlagellaExplanation
Flagella is a lash-like appendage that protrudes from the cell body of certain prokaryotic and eukaryotic cells. It is responsible for the movement of the cell, allowing it to swim or propel itself through its environment. Flagella are typically longer and fewer in number compared to cilia, which are shorter and more numerous. Pilus is a hair-like appendage used for bacterial conjugation, while microvilli are small, finger-like projections that increase the surface area of cells. Microfilaments, on the other hand, are thin protein filaments involved in cell structure and movement.Rate this question:
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- 9.
_____ are cellular organelles that contain acid hydrolase enzymes that break down waste materials and cellular debris. These are non-specific. They can be described as the stomach of the cell. They are found in animal cells, while their existence in yeasts and plants are disputed.
- A.
Lysosomes
- B.
Ribosomes
- C.
Nucleus
- D.
Mitochondria
- E.
Golgi Apparatus
Correct Answer
A. LysosomesExplanation
Lysosomes are cellular organelles that contain acid hydrolase enzymes that break down waste materials and cellular debris. They can be described as the stomach of the cell because they perform the function of digestion within the cell. Lysosomes are found in animal cells and are responsible for maintaining cellular homeostasis by breaking down and recycling cellular waste. Their existence in yeasts and plants is disputed, as these organisms have alternative mechanisms for waste disposal. Therefore, the correct answer is Lysosomes.Rate this question:
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- 10.
_____ _____ _____are involved in the synthesis of proteins and is also a membrane factory for the cell
- A.
Smooth Endoplasmic Reticulum
- B.
Rough Endoplasmic Reticulum
- C.
Lipid Endoplasmic Reticulum
- D.
Pore Endoplasmic Reticulum
Correct Answer
B. Rough Endoplasmic ReticulumExplanation
The rough endoplasmic reticulum (RER) is involved in the synthesis of proteins and is also a membrane factory for the cell. It is called "rough" because it has ribosomes attached to its surface, giving it a rough appearance under a microscope. These ribosomes synthesize proteins that are then transported into the RER for processing and modification. The RER also plays a role in the folding and quality control of proteins before they are transported to their final destinations within the cell or secreted outside of the cell.Rate this question:
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- 11.
_____ _____ _____ are involved in the synthesis of lipids, including oils, phospholipids and steroids,
- A.
Smooth Endoplasmic Reticulum
- B.
Rough Endoplasmic Reticulum
- C.
Lipid Endoplasmic Reticulum
- D.
Pore Endoplasmic Reticulum
- E.
Core Endoplasmic Reticulum
Correct Answer
A. Smooth Endoplasmic ReticulumExplanation
The smooth endoplasmic reticulum is involved in the synthesis of lipids, including oils, phospholipids, and steroids. It lacks ribosomes on its surface, which gives it a smooth appearance under a microscope. The smooth ER plays a crucial role in lipid metabolism, as it synthesizes lipids and stores calcium ions. It is also involved in detoxification processes, such as the breakdown of drugs and alcohol. Overall, the smooth endoplasmic reticulum is responsible for lipid synthesis and various other important cellular functions.Rate this question:
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- 12.
_____ (2 words) packages proteins inside the cell before they are sent to their destination; it is particularly important in the processing of proteins for secretion
Correct Answer
Golgi Apparatus, Golgi apparatusExplanation
The Golgi Apparatus, also known as the Golgi apparatus, is responsible for packaging proteins inside the cell before they are sent to their destination. It plays a crucial role in the processing of proteins for secretion.Rate this question:
- 13.
Ribosomes are not found in bacterial cells.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Ribosomes are found in bacterial cells. Ribosomes are responsible for protein synthesis, and they are present in all living cells, including bacteria. They play a crucial role in translating the genetic information from DNA into proteins. Therefore, the statement that ribosomes are not found in bacterial cells is incorrect.Rate this question:
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- 14.
The flagella and pilus are external structures for bacterial cells.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Flagella and pili are indeed external structures found in bacterial cells. Flagella are long, whip-like appendages that help bacteria move and swim in liquid environments. They provide motility to the bacteria. On the other hand, pili are short, hair-like structures that help bacteria adhere to surfaces or other cells. They are involved in processes such as bacterial conjugation, which is the transfer of genetic material between bacteria. Both flagella and pili play important roles in the survival and function of bacterial cells, making the statement true.Rate this question:
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- 15.
Jello like substance that holds the organelles in place throughout the cell
Correct Answer
cytoplasmExplanation
Cytoplasm is a jello-like substance that fills the cell and holds the organelles in place. It is a semi-fluid medium that allows for the movement of organelles and other cellular components. The cytoplasm also plays a vital role in various cellular processes such as metabolism, protein synthesis, and cell division. Therefore, the cytoplasm is the correct answer that accurately describes the jello-like substance that holds the organelles in place throughout the cell.Rate this question:
- 16.
The organelle that is responsible for breaking down old cells and waste materials, and removing those materials from the cells is.....
- A.
Mitochondria
- B.
Chloroplast
- C.
Lysosome
- D.
Ribosome
Correct Answer
C. LysosomeExplanation
Lysosomes are organelles responsible for breaking down old cells and waste materials within cells. They contain enzymes that break down these materials into smaller molecules, which can then be recycled or excreted from the cell. Lysosomes play a crucial role in maintaining cell health and preventing the accumulation of waste materials that could be harmful to the cell. Therefore, lysosomes are the correct answer for the organelle responsible for breaking down old cells and waste materials and removing them from the cells.Rate this question:
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- 17.
The _________________________ is the control center of the cell, directing all the functions of the cell.
- A.
Cell membrane
- B.
Nucleus
- C.
Endoplasmic reticulum
- D.
Mitochondria
Correct Answer
B. NucleusExplanation
The nucleus is the control center of the cell because it contains the cell's genetic material, DNA. It directs all the functions of the cell by regulating the synthesis of proteins and controlling the cell's growth, division, and reproduction. The nucleus also acts as a storage site for the cell's genetic information and is involved in the transmission of genetic traits from one generation to the next.Rate this question:
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- 18.
Pores in this organelle allow materials to pass in and out of the cell.
- A.
Endoplasmic reticulum
- B.
Golgi body
- C.
Cytoplasm
- D.
Cell membrane
Correct Answer
D. Cell membraneExplanation
The cell membrane is a selectively permeable barrier that contains pores, allowing materials to pass in and out of the cell. It regulates the movement of molecules and ions, maintaining the cell's internal environment and facilitating communication with the external environment. The endoplasmic reticulum and Golgi body are involved in protein synthesis and processing, while the cytoplasm is the fluid-filled region inside the cell where various cellular processes occur. Therefore, the cell membrane is the correct answer as it specifically describes the organelle that allows materials to pass in and out of the cell.Rate this question:
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- 19.
Largest organelle of most cells which contains the chromosomes.
- A.
Nucleolus
- B.
Nucleus
- C.
Endoplasmic reticulum
Correct Answer
B. NucleusExplanation
The correct answer is nucleus. The nucleus is the largest organelle in most cells and it contains the chromosomes. It is often referred to as the control center of the cell as it houses the cell's genetic material and controls the cell's activities. The nucleolus, on the other hand, is a smaller structure within the nucleus that is involved in the production of ribosomes. The endoplasmic reticulum is a network of membranes involved in protein synthesis and lipid metabolism.Rate this question:
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- 20.
Organelle that digests intracellular material and wastes using hydrolytic enzymes.
- A.
Vacuoles
- B.
Golgi body
- C.
Lysosomes
Correct Answer
C. LysosomesExplanation
Lysosomes are organelles that contain hydrolytic enzymes responsible for breaking down intracellular material and waste products. These enzymes work by hydrolyzing the molecules, breaking them down into smaller components that can be recycled or eliminated from the cell. Lysosomes play a crucial role in maintaining cellular homeostasis by removing damaged organelles, recycling nutrients, and participating in various cellular processes such as autophagy and apoptosis.Rate this question:
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Current Version
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Mar 20, 2023Quiz Edited by
ProProfs Editorial Team -
Sep 24, 2012Quiz Created by
John Mitchell
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