Bio 111 principles of cell biology
Section A: Multiple Choice Questions (20 Questions)
1. What is the basic structural and functional unit of life?
a) Atom
b) Molecule
c) Cell
d) Tissue
2. Which organelle is known as the "powerhouse of the cell"?
a) Nucleus
b) Mitochondria
c) Ribosome
d) Golgi apparatus
3. Which of the following is NOT a component of the cell theory?
a) All living things are made of cells. b) Cells arise from pre-existing cells.
c) Cells are the smallest unit of life. d) All cells have a nucleus.
4. What is the function of the cell membrane?
a) To produce energy
b) To control the movement of substances in and out of the cell
c) To synthesize proteins
d) To store genetic material
5. Which organelle is responsible for protein synthesis?
a) Lysosome
b) Ribosome
c) Endoplasmic reticulum
d) Nucleus
6. What is the main function of the nucleus?
a) Energy production
b) Storage of water and nutrients
c) Control of cellular activities
d) Protein synthesis
7. Which of the following is a feature of prokaryotic cells?
a) Presence of a nucleus
b) Lack of membrane-bound organelles
c) Large size
d) Presence of mitochondria
8. What is the function of lysosomes?
a) Photosynthesis
b) Digestion of waste materials
c) Protein synthesis
d) Lipid synthesis
9. Which of the following is a function of the Golgi apparatus?
a) Energy production
b) Modification and packaging of proteins
c) DNA replication
d) Waste digestion
10. What is the role of chloroplasts in plant cells?
a) Cellular respiration
b) Photosynthesis
c) Protein synthesis
d) Lipid storage
11. Which of the following is a difference between plant and animal cells?
a) Plant cells have a cell wall, while animal cells do not.
b) Animal cells have chloroplasts, while plant cells do not.
c) Plant cells lack a nucleus, while animal cells have one.
d) Animal cells have a large central vacuole, while plant cells do not.
12. What is the function of the endoplasmic reticulum (ER)?
a) Energy production
b) Transport of materials within the cell
c) Waste digestion
d) DNA replication
13. Which of the following is a function of the cytoskeleton?
a) Storage of genetic material
b) Maintenance of cell shape and movement
c) Energy production
d) Protein synthesis
14. What is the primary function of vacuoles in plant cells?
a) Storage of water and nutrients b) Energy production
c) Protein synthesis
d) Waste digestion
15. Which of the following is NOT a type of cell junction?
a) Tight junction
b) Gap junction
c) Desmosome
d) Ribosome
16. What is the function of the nucleolus?
a) Energy production
b) Synthesis of ribosomes
c) Waste digestion
d) Lipid synthesis
17. Which of the following is a function of the cell wall in plant cells?
a) Protection and support
b) Energy production
c) Protein synthesis
d) Waste digestion
18. What is the role of cilia and flagella in cells?
a) Energy production
b) Movement
c) Protein synthesis
d) Waste digestion
19. Which of the following is a function of the plasma membrane?
a) Energy production
b) Selective permeability
c) Protein synthesis
d) DNA replication
20. What is the function of peroxisomes?
a) Energy production
b) Detoxification and lipid metabolism
c) Protein synthesis
d) Waste digestion
Section B: True or False (10 Questions)
21. All cells have a nucleus. (True/False)
22. Prokaryotic cells are generally larger than eukaryotic cells. (True/False)
23. The cell membrane is selectively permeable. (True/False)
24. Mitochondria are found only in animal cells. (True/False)
25. Ribosomes are involved in protein synthesis. (True/False)
26. The Golgi apparatus modifies and packages proteins. (True/False)
27. Plant cells contain chloroplasts for photosynthesis. (True/False)
28. Lysosomes are responsible for cellular respiration. (True/False)
29. The cytoskeleton helps maintain cell shape. (True/False)
30. Vacuoles are larger in animal cells than in plant cells. (True/False)
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