+20 Questions on Cell Organization
20 multiple choice questions on Cell Organization, suitable for middle school, high school, or introductory college biology students. The correct answers are provided at the end.
Multiple Choice Questions: Cell Organization
1. What is the basic unit of life?
A) Atom
B) Organelle
C) Cell
D) Tissue
2. Which structure controls the activities of the cell?
A) Ribosome
B) Nucleus
C) Mitochondrion
D) Golgi apparatus
3. Which of the following is found in plant cells but not in animal cells?
A) Nucleus
B) Mitochondria
C) Cell wall
D) Endoplasmic reticulum
4. What is the function of the mitochondria?
A) Store genetic information
B) Make proteins
C) Convert food into energy
D) Transport materials
5. What do ribosomes do?
A) Break down waste
B) Store water
C) Make proteins
D) Replicate DNA
6. The jelly-like substance inside the cell is called:
A) Nucleus
B) Cytoplasm
C) Cell wall
D) Plasma
7. Which organelle is responsible for packaging and distributing proteins?
A) Nucleus
B) Lysosome
C) Golgi apparatus
D) Ribosome
8. Which of the following structures is found in all cells?
A) Cell wall
B) Nucleus
C) Mitochondria
D) Cell membrane
9. Which part of the cell contains DNA?
A) Nucleolus
B) Cytoplasm
C) Nucleus
D) Golgi body
10. What is the function of lysosomes?
A) Produce energy
B) Digest waste and worn-out cell parts
C) Control cell activities
D) Store food
11. What is the function of the endoplasmic reticulum (ER)?
A) Make ribosomes
B) Synthesize proteins and lipids
C) Break down molecules
D) Store calcium
12. What organelle is involved in photosynthesis?
A) Mitochondria
B) Chloroplast
C) Ribosome
D) Lysosome
13. Which organelle stores water and nutrients in plant cells?
A) Vesicle
B) Chloroplast
C) Vacuole
D) Nucleolus
14. In what type of cell would you find a chloroplast?
A) Bacterial
B) Animal
C) Plant
D) Fungal
15. Which level of organization comes just after cells?
A) Tissues
B) Organs
C) Systems
D) Organisms
16. What is a group of similar cells working together called?
A) Organ
B) System
C) Tissue
D) Organism
17. Which of the following correctly shows increasing complexity in biological organization?
A) Organ → Cell → Tissue → System
B) Cell → Tissue → Organ → Organism
C) Tissue → Cell → Organ → Organism
D) System → Tissue → Cell → Organ
18. Which of the following is NOT a function of the cell membrane?
A) Controls what enters and leaves the cell
B) Provides rigid structure
C) Maintains homeostasis
D) Protects the cell
19. Which organelle is known as the "powerhouse of the cell"?
A) Ribosome
B) Golgi body
C) Mitochondria
D) Lysosome
20. Cells that perform similar functions are grouped into:
A) Organs
B) Tissues
C) Organ systems
D) Organelles
Answer Key
1. C) Cell
2. B) Nucleus
3. C) Cell wall
4. C) Convert food into energy
5. C) Make proteins
6. B) Cytoplasm
7. C) Golgi apparatus
8. D) Cell membrane
9. C) Nucleus
10. B) Digest waste and worn-out cell parts
11. B) Synthesize proteins and lipids
12. B) Chloroplast
13. C) Vacuole
14. C) Plant
15. A) Tissues
16. C) Tissue
17. B) Cell → Tissue → Organ → Organism
18. B) Provides rigid structure
19. C) Mitochondria
20. B) Tissues
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