Life Science 20 Important MCQs on topic "Cell: The Unit of Life"

20 Important MCQs on topic "Cell: The Unit of Life" 

Here we will learn 100 MCQs on the topic "Cell – the Unit of Life," designed for different competitive exams like RRB NTPC, SSC CGL, SSC CHSL, SSC GD, WBCS, Clerkship and Miscellaneous etc. along with the correct answers.

Subject: Life Science
Topic: Cell: The Unit of Life

We will distribute these 100 MCQs in five parts. Out of five parts of 100 MCQs on the topic "Cell: the Unit of Life," this is Part: 01.

[Part: 01]

Question Zone:

1. Who coined the term "cell"?

A) Robert Brown  

B) Robert Hooke  

C) Matthias Schleiden  

D) Theodor Schwann  

2. The smallest functional and structural unit of life is:

A) Atom  

B) Molecule  

C) Cell  

D) Tissue  

3. What is the powerhouse of the cell?

A) Nucleus  

B) Mitochondria  

C) Ribosome  

D) Golgi apparatus  

4. Which organelle is responsible for photosynthesis in plants?

A) Mitochondria  

B) Chloroplast  

C) Nucleus  

D) Lysosome  

5. Which of the following is present only in plant cells and not in animal cells?

A) Ribosomes  

B) Cell Wall  

C) Mitochondria  

D) Nucleus  

6. What is the main function of the plasma membrane?

A) Protein synthesis  

B) Controlling what enters and exits the cell  

C) Photosynthesis  

D) Cellular respiration  

7. Ribosomes are the site of:

A) Photosynthesis  

B) Protein synthesis  

C) Lipid synthesis  

D) Cellular respiration  

8. Which of the following is a single-celled organism?

A) Frog  

B) Amoeba  

C) Snake  

D) Fish  

9. The jelly-like substance inside the cell is called:

A) Nucleus  

B) Cytoplasm  

C) Cell Wall  

D) Ribosome  

10. Which organelle is known as the 'suicide bag' of the cell?

A) Golgi apparatus  

B) Lysosome  

C) Endoplasmic reticulum  

D) Nucleus  

11. What is the function of the nucleus in a cell?

A) Protein synthesis  

B) Cellular respiration  

C) Storing genetic material  

D) Transport of nutrients  

12. The process by which cells divide to form two identical daughter cells is called:

A) Meiosis  

B) Mitosis  

C) Binary fission  

D) Budding  

13. The organelle responsible for packaging and transporting proteins is:

A) Golgi apparatus  

B) Ribosomes  

C) Nucleus  

D) Endoplasmic reticulum  

14. What is the liquid part of the cytoplasm called?

A) Cytosol  

B) Ribosome  

C) Lysosome  

D) Nucleolus  

15. Which of the following is not a function of the cell wall?

A) Protection  

B) Support  

C) Controlling cell division  

D) Maintaining cell shape  

16. Which of the following structures is found in plant cells but not in animal cells?

A) Mitochondria  

B) Endoplasmic reticulum  

C) Vacuole  

D) Plastids  

17. In which part of the cell does cellular respiration take place?

A) Mitochondria  

B) Nucleus  

C) Lysosome  

D) Golgi apparatus  

18. Which of the following organisms do not have a nucleus?

A) Amoeba  

B) Bacteria  

C) Fungi  

D) Protozoa  

19. The semi-permeable membrane that surrounds the nucleus is called:

A) Plasma membrane  

B) Nuclear envelope  

C) Cell wall  

D) Cytoplasm  

20. Which of the following is responsible for the synthesis of lipids?

A) Rough endoplasmic reticulum  

B) Smooth endoplasmic reticulum  

C) Ribosomes  

D) Lysosomes  

Answer Zone:

1. B) Robert Hooke
2. C) Cell
3. B) Mitochondria
4. B) Chloroplast
5. B) Cell Wall
6. B) Controlling what enters and exits the cell
7. B) Protein synthesis
8. B) Amoeba
9. B) Cytoplasm
10. B) Lysosome
11. C) Storing genetic material
12. B) Mitosis
13. A) Golgi apparatus
14. A) Cytosol
15. C) Controlling cell division
16. D) Plastids
17. A) Mitochondria
18. B) Bacteria
19. B) Nuclear envelope
20. B) Smooth endoplasmic reticulum