class 9 biology mcq of chapter 3

🧬 Chapter 3: The Cell—MCQs

1. Who discovered the cell?

A) Louis Pasteur
B) Robert Hooke
C) Anton van Leeuwenhoek
D) Schleiden
✅ Answer: B) Robert Hooke

2. The term 'cell' was derived from the Latin word “cellula,” meaning:
A) Water
B) Small room
C) Nucleus
D) Tissue
✅ Answer: B) Small room

3. Which of the following is not a part of cell theory?
A) All living things are made of cells
B) Cells are the basic units of life
C) All cells have a nucleus
D) All cells come from pre-existing cells
✅ Answer: C) All cells have a nucleus

4. Which scientist proposed that all animals are made up of cells?
A) Schleiden
B) Schwann
C) Virchow
D) Hooke
✅ Answer: B) Schwann

5. The smallest living unit in an organism is:
A) Organelle
B) Tissue
C) Cell
D) Organ
✅ Answer: C) Cell

6. A typical cell has how many main parts?
A) One
B) Two
C) Three
D) Four
✅ Answer: C) Three (cell membrane, cytoplasm, nucleus)

7. Which cell organelle is called the 'powerhouse' of the cell?
A) Ribosome
B) Mitochondria
C) Nucleus
D) Golgi apparatus
✅ Answer: B) Mitochondria

8. Which of the following is a prokaryotic cell?
A) Fungi
B) Plant cell
C) Animal cell
D) Bacteria
✅ Answer: D) Bacteria

9. The jelly-like substance inside the cell membrane is called:
A) Nucleus
B) Cytoplasm
C) Ribosome
D) Vacuole
✅ Answer: B) Cytoplasm

10. Which organelle is responsible for protein synthesis?
A) Mitochondria
B) Nucleus
C) Ribosomes
D) Lysosomes
✅ Answer: C) Ribosomes

11. What is the function of the nucleus?

A) Provide energy
B) Make proteins
C) Control cell activities
D) Transport materials
✅ Answer: C) Control cell activities

12. Which of these is found only in plant cells?
A) Nucleus
B) Mitochondria
C) Chloroplast
D) Cytoplasm
✅ Answer: C) Chloroplast

13. Cell wall is made up of:
A) Protein
B) Lipids
C) Cellulose
D) Glucose
✅ Answer: C) Cellulose

14. Which of the following is absent in animal cells?
A) Mitochondria
B) Cell membrane
C) Nucleus
D) Cell wall
✅ Answer: D) Cell wall

15. The semi-permeable structure around the cell is
A) Cell wall
B) Nucleus
C) Cytoplasm
D) Cell membrane
✅ Answer: D) Cell membrane

16. Which organelle contains digestive enzymes?
A) Nucleus
B) Ribosome
C) Lysosome
D) Golgi body
✅ Answer: C) Lysosome

17. Which of the following is not an organelle?
A) Nucleus
B) Mitochondria
C) Ribosome
D) Tissue
✅ Answer: D) Tissue

18. Plant cells store food in the form of:
A) Glycogen
B) Starch
C) Protein
D) Lipids
✅ Answer: B) Starch

19. What is the function of the vacuole in plant cells?
A) Respiration
B) Storage of food, water, waste
C) Digestion
D) Protein synthesis
✅ Answer: B) Storage of food, water, waste

20. Which of these is called the 'brain of the cell'?
A) Cytoplasm
B) Mitochondria
C) Nucleus
D) Ribosome
✅ Answer: C) Nucleus

21. Prokaryotic cells lack:

A) Cell wall
B) Cell membrane
C) Nucleus
D) Cytoplasm
✅ Answer: C) Nucleus

22. Which organelle is responsible for photosynthesis?
A) Chloroplast
B) Mitochondria
C) Ribosomes
D) Nucleus
✅ Answer: A) Chloroplast

23. Which part of the cell regulates the entry and exit of substances?
A) Nucleus
B) Cytoplasm
C) Cell membrane
D) Vacuole
✅ Answer: C) Cell membrane

24. Animal cells store food in the form of:
A) Starch
B) Cellulose
C) Glycogen
D) Glucose
✅ Answer: C) Glycogen

25. Which of the following is called the packaging center of the cell?
A) Ribosomes
B) Mitochondria
C) Golgi apparatus
D) Vacuole
✅ Answer: C) Golgi apparatus

26. The function of the endoplasmic reticulum is

A) Protein and lipid transport
B) Cell division
C) Energy production
D) Digestion
✅ Answer: A) Protein and lipid transport

27. Which part of the cell is responsible for hereditary information?
A) Cytoplasm
B) Ribosomes
C) DNA in nucleus
D) Golgi body
✅ Answer: C) DNA in nucleus

28. Cells that have a true nucleus are called:
A) Eukaryotic
B) Prokaryotic
C) Autotrophic
D) Heterotrophic
✅ Answer: A) Eukaryotic

29. A group of similar cells performing a function is called:
A) Tissue
B) Organ
C) System
D) Organism
✅ Answer: A) Tissue

30. The green pigment in plant cells is:
A) Hemoglobin
B) Chlorophyll
C) Carotene
D) Cytoplasm
✅ Answer: B) Chlorophyll

31. Which organelle is responsible for cellular respiration?

A) Chloroplast
B) Ribosome
C) Golgi body
D) Mitochondria
✅ Answer: D) Mitochondria

32. The powerhouse of the cell is absent in:
A) Plant cell
B) Animal cell
C) Bacteria
D) Fungi
✅ Answer: C) Bacteria

33. The study of cells is called:
A) Pathology
B) Histology
C) Cytology
D) Anatomy
✅ Answer: C) Cytology

34. DNA is mainly found in the:
A) Cell membrane
B) Cytoplasm
C) Nucleus
D) Golgi apparatus
✅ Answer: C) Nucleus

35. Which of the following has a cell wall?
A) Human cell
B) Fungal cell
C) Bacterial cell
D) Both B and C
✅ Answer: D) Both B and C

36. Ribosomes are found in:

A) Nucleus
B) Cytoplasm and ER
C) Vacuole
D) Cell wall
✅ Answer: B) Cytoplasm and ER

37. The Nucleolus is found inside the:
A) Cytoplasm
B) Cell wall
C) Nucleus
D) Mitochondria
✅ Answer: C) Nucleus

38. Cell theory was given by:
A) Schleiden and Schwann
B) Darwin and Wallace
C) Watson and Crick
D) Hooke and Leeuwenhoek
✅ Answer: A) Schleiden and Schwann

39. The outer boundary of the animal cell is:
A) Cell wall
B) Cytoplasm
C) Cell membrane
D) Nucleus
✅ Answer: C) Cell membrane

40. Vacuoles are large and central in:
A) Animal cells
B) Plant cells
C) Bacteria
D) Fungi
✅ Answer: B) Plant cells

41. Cells were first observed in:
A) Dead cork cells
B) Onion peel
C) Human cheek cells
D) Blood cells
✅ Answer: A) Dead cork cells

42. The function of the cell wall is to:
A) Control activities
B) Provide shape and protection
C) Synthesize proteins
D) Store waste
✅ Answer: B) Provide shape and protection

43. Animal cells are usually:
A) Square
B) Rectangular
C) Irregular or round
D) Polygonal
✅ Answer: C) Irregular or round

44. Which of the following is found in both plant and animal cells?
A) Chloroplast
B) Cell wall
C) Mitochondria
D) Large vacuole
✅ Answer: C) Mitochondria

45. Which structure controls the movement of substances in and out of the cell?
A) Nucleus
B) Cytoplasm
C) Cell membrane
D) Golgi apparatus
✅ Answer: C) Cell membrane

46. A unicellular organism is made of:
A) Many cells
B) One cell
C) Two cells
D) No cell
✅ Answer: B) One cell

47. In multicellular organisms, similar cells form:
A) Atoms
B) Tissues
C) Molecules
D) Organs
✅ Answer: B) Tissues

48. Which of the following is a non-living part of the cell?
A) Mitochondria
B) Cytoplasm
C) Cell wall
D) Nucleus
✅ Answer: C) Cell wall

49. Chromosomes are made up of:
A) Proteins only
B) DNA only
C) DNA and proteins
D) RNA and lipids
✅ Answer: C) DNA and proteins

50. Plant cells differ from animal cells in having:
A) Ribosomes
B) Cell membrane
C) Chloroplast and cell wall
D) Nucleus
✅ Answer: C) Chloroplast and cell wall