Chapter 6: Fundamental Unit of Life – Important MCQs
1. The basic structural and functional unit of life is called:
A. Tissue
B. Cell
C. Organ
D. Nucleus
✔️ Answer: B. Cell
2. Who discovered the cell?
A. Robert Brown
B. Robert Hooke
C. Leeuwenhoek
D. Schleiden
✔️ Answer: B. Robert Hooke
3. Which of the following is present only in plant cells?
A. Nucleus
B. Cytoplasm
C. Cell wall
D. Mitochondria
✔️ Answer: C. Cell wall
4. The jelly-like substance found inside the cell is called:
A. Protoplasm
B. Cytoplasm
C. Nucleoplasm
D. Vacuole
✔️ Answer: B. Cytoplasm
5. In which part of the cell does most of the metabolic activity take place?
A. Cell wall
B. Nucleus
C. Cytoplasm
D. Ribosome
✔️ Answer: C. Cytoplasm
6. The structure that controls all the activities of the cell is:
A. Mitochondria
B. Chloroplast
C. Nucleus
D. Ribosome
✔️ Answer: C. Nucleus
7. Which of the following cell organelles is known as the “powerhouse of the cell”?
A. Ribosome
B. Nucleus
C. Mitochondria
D. Golgi apparatus
✔️ Answer: C. Mitochondria
8. Which of the following is found in plant cells but not in animal cells?
A. Lysosome
B. Cell membrane
C. Vacuole
D. Chloroplast
✔️ Answer: D. Chloroplast
9. The outermost covering of an animal cell is:
A. Cell wall
B. Cell membrane
C. Plasma membrane
D. Both B and C
✔️ Answer: D. Both B and C
10. The organelle responsible for photosynthesis in plant cells is:
A. Mitochondria
B. Chloroplast
C. Ribosome
D. Golgi body
✔️ Answer: B. Chloroplast
