30 MCQ Questions for Class 9 Science: Chapter 5 The Fundamental Unit Of Life
Question 1. What is the main function of the cell wall in plant cells?
a) Energy storage
b) Controlling entry and exit of substances
c) Providing structural support and shape
d) Housing the cell’s genetic material
Answer:
c) Providing structural support and shape
Question 2. Where are proteins synthesized within the cell?
a) Golgi apparatus
b) Ribosomes
c) Mitochondria
d) Nucleus
Answer:
b) Ribosomes
Question 3. What is osmosis?
a) Movement of solute particles from low to high concentration
b) Movement of water molecules from high to low concentration across a semi-permeable membrane
c) Movement of solute particles across a cell membrane without energy
d) Active transport of ions across a cell membrane
Answer:
b) Movement of water molecules from high to low concentration across a semi-permeable membrane
Question 4. Which organelle is known as the powerhouse of the cell?
a) Ribosome
b) Endoplasmic reticulum
c) Mitochondria
d) Nucleus
Answer:
c) Mitochondria
Question 5. What type of cell division is involved in the growth and repair of body tissues?
a) Meiosis
b) Mitosis
c) Binary fission
d) Budding
Answer:
b) Mitosis
Question 6. The plasma membrane of a cell is primarily composed of:
a) Carbohydrates and nucleic acids
b) Lipids and proteins
c) Proteins and carbohydrates
d) Nucleic acids and lipids
Answer:
b) Lipids and proteins
Question 7. Lysosomes are known as:
a) Powerhouses of the cell
b) Protein factories of the cell
c) Suicide bags of the cell
d) Brain of the cell
Answer:
c) Suicide bags of the cell
Question 8. The Golgi apparatus is involved in:
a) Synthesizing proteins
b) Breaking down waste materials
c) Packaging and dispatching materials within and outside the cell
d) Producing energy for the cell
Answer:
c) Packaging and dispatching materials within and outside the cell
Question 9. Which of the following is a characteristic of prokaryotic cells?
a) Presence of a well-defined nucleus
b) Absence of membrane-bound organelles
c) Presence of chloroplasts
d) Large central vacuole
Answer:
b) Absence of membrane-bound organelles
Question 10. Vacuoles in plant cells are responsible for:
a) Photosynthesis
b) Storing water and other materials
c) Protein synthesis
d) Cell division
Answer:
b) Storing water and other materials
Question 11. Which organelle is known as the ‘Powerhouse of the Cell’?
a) Golgi apparatus
b) Mitochondria
c) Endoplasmic reticulum
d) Ribosome
Answer:
b) Mitochondria
Question 12. What is the primary function of the cell wall in plant cells?
a) Synthesis of proteins
b) Providing structural support
c) Storage of nutrients
d) Energy production
Answer:
b) Providing structural support
Question 13. The selectively permeable membrane that surrounds the cell is known as:
a) Cell wall
b) Plasma membrane
c) Cytoplasm
d) Nuclear membrane
Answer:
b) Plasma membrane
Question 14. What is osmosis?
a) Movement of solutes from higher to lower concentration
b) Movement of water from higher to lower concentration through a semi-permeable membrane
c) Active transport of ions
d) Passive movement of molecules
Answer:
b) Movement of water from higher to lower concentration through a semi-permeable membrane
Question 15. Ribosomes are the sites of:
a) Lipid synthesis
b) Protein synthesis
c) Energy production
d) Waste disposal
Answer:
b) Protein synthesis
Question 16. Lysosomes are involved in:
a) Photosynthesis
b) Protein synthesis
c) Digesting waste material in the cell
d) Transport of substances
Answer:
c) Digesting waste material in the cell
Question 17. Vacuoles in plant cells are mainly involved in:
a) Protein synthesis
b) Storing water and other materials
c) Energy production
d) Transporting molecules
Answer:
b) Storing water and other materials
Question 18. The Endoplasmic Reticulum (ER) is involved in:
a) Storing waste products
b) Synthesis and transport of lipids and proteins
c) Energy production
d) DNA replication
Answer:
b) Synthesis and transport of lipids and proteins
Question 19. The organelles responsible for photosynthesis in plant cells are:
a) Mitochondria
b) Chloroplasts
c) Ribosomes
d) Lysosomes
Answer:
b) Chloroplasts
Question 20. What type of cells are bacteria?
a) Eukaryotic
b) Prokaryotic
c) Multicellular
d) None of the above
Answer:
b) Prokaryotic
Question 21. The control center of the cell is the __________.
Fill in the blank.
Answer:
Nucleus
Question 22. __________ is the process by which Amoeba engulfs its food.
Fill in the blank.
Answer:
Phagocytosis
Question 23. Chloroplasts are found only in __________ cells.
Fill in the blank.
Answer:
Plant
Question 24. Proteins are synthesized in the cell on the __________.
Fill in the blank.
Answer:
Ribosomes
Question 25. The __________ is the semi-permeable membrane that surrounds the cell.
Fill in the blank.
Answer:
Plasma membrane
Question 26. Mitochondria are the sites of cellular respiration. (True/False)
True / False
Answer:
True
Question 27. Lysosomes are involved in protein synthesis. (True/False)
True / False
Answer:
False
Question 28. The Golgi apparatus is responsible for energy production in the cell. (True/False)
True / False
Answer:
False
Question 29. Ribosomes are membrane-bound organelles. (True/False)
True / False
Answer:
False
Question 30. Prokaryotic cells lack a well-defined nucleus. (True/False)
True / False
Answer:
True
Question on Match the Columns
Unmatched Columns – Questions
| Column A | Column B |
|---|---|
| (i) Cell Membrane | (a) Protein synthesis |
| (ii) Nucleus | (b) Selectively permeable barrier |
| (iii) Ribosomes | (c) Photosynthesis in plant cells |
| (iv) Mitochondria | (d) Control center of the cell |
| (v) Chloroplasts | (e) Energy production |
| (vi) Lysosomes | (f) Waste disposal |
Matched Columns – Answer
| Column A | Column B |
|---|---|
| (i) Cell Membrane | (b) Selectively permeable barrier |
| (ii) Nucleus | (d) Control center of the cell |
| (iii) Ribosomes | (a) Protein synthesis |
| (iv) Mitochondria | (e) Energy production |
| (v) Chloroplasts | (c) Photosynthesis in plant cells |
| (vi) Lysosomes | (f) Waste disposal |
