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MCQ on Class 9 Science Chapter 5: The Fundamental Unit Of Life

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Chapter 5 of class 9 science as per the NCERT syllabus is The Fundamental Unit Of Life which deals with Cell Structure, Cell Organelles and Functions, Cell Division, Significance of Cells, etc.

Here, we have discussed 30 Multiple Choice Questions based on these topics of the chapter. These questions will help you to learn more about the chapter and test your knowledge.

For each question below, there are four options out of which only one option is correct. The correct answer to each question is given at the end for your reference.

MCQ on Class 9 Science Chapter 5

1. Who discovered cells in cork in 1665?

a) Antonie van Leeuwenhoek
b) Robert Hooke
c) Robert Brown
d) Rudolf Virchow

2. Which scientist proposed the cell theory?

a) Robert Hooke
b) Matthias Schleiden
c) Theodor Schwann
d) Rudolf Virchow

3. What is the basic structural and functional unit of life?

a) Tissue
b) Organ
c) Cell
d) Organism

4. Which organelle is responsible for producing ATP?

a) Nucleus
b) Golgi apparatus
c) Mitochondria
d) Endoplasmic reticulum

5. What is the function of the plasma membrane?

a) Synthesizing proteins
b) Regulating cell activities
c) Storing genetic material
d) Providing structural support

6. Which organelle contains genetic material and controls cell activities?

a) Mitochondria
b) Nucleus
c) Golgi apparatus
d) Lysosomes

7. Plasmolysis is the process of:

a) Cell division
b) Movement of substances across the cell membrane
c) Shrinking of the cell membrane away from the cell wall
d) Synthesis of proteins

8. Who proposed the concept of cell division?

a) Robert Brown
b) Theodor Schwann
c) Matthias Schleiden
d) Rudolf Virchow

9. What is the division of somatic cells for growth and repair called?

a) Mitosis
b) Meiosis
c) Fission
d) Budding

10. Which process involves the division of germ cells to produce gametes?

a) Mitosis
b) Meiosis
c) Binary fission
d) Budding

11. The powerhouse of the cell is:

a) Golgi apparatus
b) Nucleus
c) Mitochondria
d) Endoplasmic reticulum

12. The fluid-filled sacs in plant cells responsible for storage are called:

a) Lysosomes
b) Mitochondria
c) Vacuoles
d) Plastids

13. Which organelle is responsible for packaging and distributing proteins?

a) Nucleus
b) Endoplasmic reticulum
c) Golgi apparatus
d) Lysosomes

14. Which activity involves observing the nucleus of a cell?

a) Observing onion peel cells
b) Studying osmosis with an egg
c) Examining cheek cells
d) Investigating plasmolysis in plant cells

15. Who discovered the nucleus in a cell?

a) Robert Hooke
b) Antonie van Leeuwenhoek
c) Robert Brown
d) Rudolf Virchow

16. What is the primary function of lysosomes?

a) Energy production
b) Protein synthesis
c) Waste digestion
d) Lipid synthesis

17. The process of movement of substances across a semipermeable membrane is called:

a) Osmosis
b) Diffusion
c) Active transport
d) Facilitated diffusion

18. What is the function of the cell wall in plant cells?

a) Regulation of cell activities
b) Providing structural support
c) Production of ATP
d) Packaging and distributing proteins

19. Which experiment involves observing the cell membrane shrinking away from the cell wall?

a) Observing onion peel cells
b) Studying osmosis with an egg
c) Investigating plasmolysis in plant cells
d) Examining cheek cells

20. Who proposed the concept of the fluid mosaic model of the plasma membrane?

a) Robert Hooke
b) Theodor Schwann
c) Singer and Nicolson
d) Rudolf Virchow

21. What is the correct order of the cell cycle?

a) G1 phase, S phase, G2 phase, M phase
b) G1 phase, G2 phase, S phase, M phase
c) S phase, G1 phase, G2 phase, M phase
d) S phase, G2 phase, G1 phase, M phase

22. Which phase of the cell cycle involves DNA replication?

a) G1 phase
b) G2 phase
c) S phase
d) M phase

23. During which phase of mitosis do chromosomes align at the cell equator?

a) Prophase
b) Metaphase
c) Anaphase
d) Telophase

24. The process of cytoplasmic division following nuclear division is called:

a) Cytokinesis
b) Meiosis
c) Mitosis
d) Binary fission

25. Which type of cell division produces genetically identical daughter cells?

a) Mitosis
b) Meiosis
c) Both mitosis and meiosis
d) Neither mitosis nor meiosis

26. What is the main difference between mitosis and meiosis?

a) Mitosis produces haploid cells, while meiosis produces diploid cells.
b) Mitosis produces genetically identical cells, while meiosis produces genetically diverse cells.
c) Mitosis occurs in somatic cells, while meiosis occurs in gametes.
d) Mitosis involves two rounds of division, while meiosis involves one round of division.

27. Which organelle is responsible for photosynthesis in plant cells?

a) Mitochondria
b) Lysosomes
c) Chloroplasts
d) Golgi apparatus

28. The process by which cells engulf solid particles is called:

a) Endocytosis
b) Exocytosis
c) Pinocytosis
d) Phagocytosis

29. What is the primary function of the Golgi apparatus?

a) Energy production
b) Protein synthesis
c) Lipid synthesis
d) Packaging and distributing proteins

30. Which scientist proposed the principle that all cells arise from pre-existing cells?

a) Robert Hooke
b) Antonie van Leeuwenhoek
c) Robert Brown
d) Rudolf Virchow

Correct Answers

Here is the list of correct answers to the above questions.

  1. b) Robert Hooke
  2. c) Theodor Schwann
  3. c) Cell
  4. c) Mitochondria
  5. b) Regulating cell activities
  6. b) Nucleus
  7. c) Shrinking of the cell membrane away from the cell wall
  8. d) Rudolf Virchow
  9. a) Mitosis
  10. b) Meiosis
  11. c) Mitochondria
  12. c) Vacuoles
  13. c) Golgi apparatus
  14. c) Examining cheek cells
  15. c) Robert Brown
  16. c) Waste digestion
  17. a) Osmosis
  18. b) Providing structural support
  19. c) Investigating plasmolysis in plant cells
  20. c) Singer and Nicolson
  21. c) S phase, G1 phase, G2 phase, M phase
  22. c) S phase
  23. b) Metaphase
  24. a) Cytokinesis
  25. a) Mitosis
  26. b) Mitosis produces genetically identical cells, while meiosis produces genetically diverse cells.
  27. c) Chloroplasts
  28. d) Phagocytosis
  29. d) Packaging and distributing proteins
  30. d) Rudolf Virchow

The Bottom Line

I hope these 30 MCQs on The Fundamental Unit Of Life of Class 9 Science Chapter 5 have helped you in your studies and preparation.

If you have any queries, or comments or find any mistake in the above questions, feel free to contact me in the comment section below.

I would love to hear from you.

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