The Cell – Structure and Functions MCQs

1. What is the basic unit of life?
(A) Tissue
(B) Organ
(C) Cell
(D) Nucleus

2. Which organelle is known as the powerhouse of the cell?
(A) Nucleus
(B) Ribosome
(C) Mitochondrion
(D) Golgi apparatus

3. What is the function of the ribosomes in a cell?
(A) DNA replication
(B) Protein synthesis
(C) Energy production
(D) Waste disposal

4. Which cell organelle is responsible for packaging and transporting proteins?
(A) Lysosome
(B) Endoplasmic reticulum
(C) Golgi apparatus
(D) Mitochondria

5. Which structure controls the movement of substances in and out of a cell?
(A) Cell wall
(B) Cytoplasm
(C) Cell membrane
(D) Nucleus

6. What is found only in plant cells and not in animal cells?
(A) Nucleus
(B) Mitochondria
(C) Chloroplast
(D) Ribosome

7. Which organelle contains digestive enzymes to break down waste?
(A) Nucleus
(B) Lysosome
(C) Endoplasmic reticulum
(D) Vacuole

8. What is the jelly-like substance inside the cell that holds organelles?
(A) Cytoplasm
(B) Protoplasm
(C) Nucleoplasm
(D) Matrix

9. Which of the following is a single-celled organism?
(A) Human
(B) Dog
(C) Amoeba
(D) Fish

10. What is the function of the nucleus?
(A) Energy production
(B) Protein synthesis
(C) Digestion of waste
(D) Control of cell activities and genetic information