THE CELL (āϕ⧋āώ) : Top MCQs


Q1. The basic structural and functional unit of life is: / āĻœā§€ā§ąāύ⧰ āĻŽā§ŒāϞāĻŋāĻ• āĻ—āĻ āύ āφ⧰⧁ āĻ•āĻžā§°ā§āϝ āĻāĻ•āĻ• āĻ•āĻŋ ?


A) Nucleus B) Cell C) Tissue D) Organ


Ans: B) Cell
Explanation: Cell is the smallest unit that performs all life functions. : āϕ⧋āώ āĻšā§ˆāϛ⧇ āĻœā§€ā§ąāύ⧰ āĻ¸ā§°ā§āĻŦāύāĻŋāĻŽā§āύ āĻāĻ•āĻ• āϝāĻŋāϝāĻŧ⧇ āϏāĻ•āϞ⧋ āĻœā§€ā§ąāύ⧀āϝāĻŧ āĻ•āĻžā§°ā§āϝ āϕ⧰⧇āĨ¤


Q2. The control center of the cell is: / āϕ⧋āώ⧰ āύāĻŋāϝāĻŧāĻ¨ā§āĻ¤ā§ā§°āĻŖ āϕ⧇āĻ¨ā§āĻĻā§ā§° āĻ•āĻŋ ?


A) Mitochondria B) Ribosome C) Nucleus D) Lysosome


Ans: C) Nucleus
Explanation: Nucleus controls all activities of the cell. āύāĻŋāωāĻ•ā§āϞāĻŋāϝāĻŧāĻžāĻ› āϕ⧋āώ⧰ āϏāĻ•āϞ⧋ āĻ•āĻžā§°ā§āϝ āύāĻŋāϝāĻŧāĻ¨ā§āĻ¤ā§ā§°āĻŖ āϕ⧰⧇āĨ¤


Q3. Plant cells have an additional structure called: / āωāĻĻā§āĻ­āĻŋāĻĻ āϕ⧋āώāϤ āĻ•āĻŋ āĻŦ⧇āĻ›āĻŋ āĻĨāĻžāϕ⧇ ?


A) Cell wall B) Cilia C) Centrosome D) Flagella


Ans: A) Cell wall
Explanation: Cell wall gives strength and protection. : āϕ⧋āώ āĻĒā§ā§°āĻžāĻšā§€ā§°ā§‡ āĻļāĻ•ā§āϤāĻŋ āφ⧰⧁ āϏ⧁⧰āĻ•ā§āώāĻž āĻĻāĻŋāϝāĻŧ⧇āĨ¤


Q4. "Powerhouse of the cell" is: / āϕ⧋āώ⧰ āĻļāĻ•ā§āϤāĻŋāϘ⧰ āĻ•āĻŋ ?


A) Golgi body B) Mitochondria C) Ribosome D) Chloroplast


Ans: B) Mitochondria
Explanation: Produces energy (ATP). : āĻļāĻ•ā§āϤāĻŋ (ATP) āĻ‰ā§ŽāĻĒāĻ¨ā§āύ āϕ⧰⧇āĨ¤


Q5. Organelle for photosynthesis: / āĻĢāĻŸā§‹āϏāĻŋāĻ¨ā§āĻĨ⧇āĻ›āĻŋāϛ⧰ āĻŦāĻžāĻŦ⧇ āĻ…āĻ‚āĻ—āĻžāϪ⧁ āĻ•āĻŋ ?


A) Nucleus B) Chloroplast C) Ribosome D) Vacuole


Ans: B) Chloroplast
Explanation: Contains chlorophyll for photosynthesis. : āĻ•ā§āϞ⧋⧰⧋āĻĢāĻŋāϞ āĻĨāĻžāϕ⧇, āϝāĻžā§° āĻŦāĻžāĻŦ⧇ āĻĢāĻŸā§‹āϏāĻŋāĻ¨ā§āĻĨ⧇āĻ›āĻŋāĻ› āĻšāϝāĻŧāĨ¤


Q6. Who discovered the cell ? / āϕ⧋āώ āϕ⧋āύ⧇ āĻ†ā§ąāĻŋāĻˇā§āĻ•āĻžā§° āϕ⧰āĻŋāĻ›āĻŋāϞ ?


A) Darwin B) Hooke C) Mendel D) Watson


Ans: B) Hooke
Explanation: Robert Hooke discovered cells in cork. : ā§°’āĻŦāĻžā§°ā§āϟ āĻšā§āϕ⧇ āĻ•ā§°ā§āĻ•āϤ āϕ⧋āώ āĻĻ⧇āĻ–āĻŋāĻ›āĻŋāϞāĨ¤


Q7. Found only in animal cells: / āĻ•ā§‡ā§ąāϞ āĻĒā§ā§°āĻžāĻŖā§€ āϕ⧋āώāϤ āĻĒā§‹ā§ąāĻž āϝāĻžāϝāĻŧ ?


A) Cell wall B) Chloroplast C) Centriole D) Vacuole


Ans: C) Centriole
Explanation: Centrioles help in cell division. : āĻšā§‡āĻŖā§āĻŸā§ā§°āĻŋāĻ“āϞ āϕ⧋āώ āĻŦāĻŋāĻ­āĻžāϜāύāϤ āϏāĻšāĻžāϝāĻŧ āϕ⧰⧇āĨ¤


Q8. Jelly-like substance is: / āĻœā§‡āϞāĻŋā§° āĻĻ⧰⧇ āĻĒāĻĻāĻžā§°ā§āĻĨ āĻ•āĻŋ ?


A) Nucleus B) Cytoplasm C) Nucleolus D) Chromatin


Ans: B) Cytoplasm
Explanation: Cytoplasm holds organelles. : āϚāĻžāχāĻŸā§‹āĻĒā§āϞāĻžāϜāĻŽā§‡ āϏāĻ•āϞ⧋ āĻ…āĻ‚āĻ—āĻžāϪ⧁ āϧ⧰āĻŋ ā§°āĻžāϖ⧇āĨ¤


Q9. Protein synthesis organelle: / āĻĒā§ā§°’āϟāĻŋāύ āϤ⧈āϝāĻŧāĻžā§° āϕ⧰āĻž āĻ…āĻ‚āĻ—āĻžāϪ⧁ āĻ•āĻŋ ?


A) Ribosome B) Lysosome C) Golgi body D) Peroxisome


Ans: A) Ribosome
Explanation: Ribosomes make proteins. : ā§°āĻžāχāĻŦ’āϛ⧋āĻŽā§‡ āĻĒā§ā§°’āϟāĻŋāύ āϤ⧈āϝāĻŧāĻžā§° āϕ⧰⧇āĨ¤


Q10. Outermost layer of animal cell: / āĻĒā§ā§°āĻžāĻŖā§€ āϕ⧋āώ⧰ āĻŦāĻžāĻšāĻŋā§°ā§° āĻ¸ā§āϤ⧰ āĻ•āĻŋ ?


A) Cell wall B) Cell membrane C) Capsule D) Cytoplasm


Ans: B) Cell membrane
Explanation: It controls entry and exit of substances. : āχ āĻĒāĻĻāĻžā§°ā§āĻĨā§° āĻĒā§ā§°ā§ąā§‡āĻļ āφ⧰⧁ āĻŦāĻšāĻŋā§°ā§āĻ—āĻŽāύ āύāĻŋāϝāĻŧāĻ¨ā§āĻ¤ā§ā§°āĻŖ āϕ⧰⧇āĨ¤


Quick Revision Trick


Cell = basic unit : āϕ⧋āώ : āĻŽā§ŒāϞāĻŋāĻ• āĻāĻ•āĻ•
Nucleus = control center : āύāĻŋāωāĻ•ā§āϞāĻŋāϝāĻŧāĻžāĻ› = āύāĻŋāϝāĻŧāĻ¨ā§āĻ¤ā§ā§°āĻŖ
Mitochondria = energy : āĻŽāĻžāχāϟ’āĻ•āĻŖā§āĻĄā§ā§°āĻŋāϝāĻŧāĻž = āĻļāĻ•ā§āϤāĻŋ
Ribosome = protein : ā§°āĻžāχāĻŦ’āϛ⧋āĻŽ = āĻĒā§ā§°’āϟāĻŋāύ


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Q1. Plasma membrane is: / āϕ⧋āώ āĻāĻŋāĻ˛ā§āϞ⧀ āĻ•āĻŋ ?


A) Permeable B) Impermeable C) Selectively permeable D) Rigid


Ans: C
Explanation: Allows selective entry. : āύāĻŋāĻ°ā§āĻŦāĻžāϚāĻŋāϤ āĻĒāĻĻāĻžā§°ā§āĻĨāĻšā§‡ āϏ⧋āĻŽāĻžāϝāĻŧāĨ¤


Q2. Prokaryotic cells lack: / āĻĒā§ā§°’āĻ•āĻžā§°āĻŋāϝāĻŧ’āϟāĻŋāĻ• āϕ⧋āώāϤ āύāĻžāχ


A) Cytoplasm B) Membrane C) Nucleus D) Ribosome


Ans: C
Explanation: No true nucleus. : āĻŦāĻžāĻ¸ā§āĻ¤ā§ą āύāĻŋāωāĻ•ā§āϞāĻŋāϝāĻŧāĻžāĻ› āύāĻžāχāĨ¤


Q3. Organelle for energy: / āĻļāĻ•ā§āϤāĻŋā§° āĻ…āĻ‚āĻ—āĻžāϪ⧁


A) Ribosome B) Mitochondria C) Golgi D) Vacuole


Ans: B


Q4. “Suicide bag” is: / āφāĻ¤ā§āĻŽāĻšāĻ¤ā§āϝāĻž āĻŦ⧇āĻ—


A) Lysosome B) Nucleus C) ER D) Golgi


Ans: A


Q5. DNA present in: / DNA āĻ•’āϤ āĻĨāĻžāϕ⧇ ?


A) Cytoplasm B) Nucleus C) Ribosome D) Vacuole


Ans: B


Q6. Chloroplast found in: / āĻ•ā§āϞ⧋⧰⧋āĻĒā§āϞāĻžāĻˇā§āϟ āĻ•’āϤ āĻĨāĻžāϕ⧇ ?


A) Animal cell B) Plant cell C) Both D) None


Ans: B


Q7. Ribosome function: / ā§°āĻžāχāĻŦ’āϛ⧋āĻŽā§° āĻ•āĻžāĻŽ


A) Respiration B) Protein synthesis C) Storage D) Control


Ans: B


Q8. Vacuole is large in: / āĻĄāĻžāϙ⧰ āϭ⧇āĻ•ā§ā§ą’āϞ āĻ•’āϤ ? 


A) Animal cell B) Plant cell C) Both D) None


Ans: B


Q9. Cell wall made of: / āϕ⧋āώ āĻĒā§ā§°āĻžāĻšā§€ā§° āĻ•āĻŋāĻšā§‡ā§°ā§‡ āĻ—āĻ āĻŋāϤ ?


A) Protein B) Lipid C) Cellulose D) Fat


Ans: C


Q10. Golgi body helps in: / āĻ—’āϞāϜāĻŋ āĻŦāĻĄāĻŋā§° āĻ•āĻžāĻŽ


A) Digestion B) Transport C) Control D) Respiration


Ans: B


Part 2: Assertion–Reason


Q11. A: Mitochondria produce energy R: They perform respiration


Ans: Both true
Explanation: Respiration releases energy. : āĻļā§āĻŦāĻžāϏ-āĻĒā§ā§°āĻļā§āĻŦāĻžāϏ⧇ āĻļāĻ•ā§āϤāĻŋ āĻ‰ā§ŽāĻĒāĻ¨ā§āύ āϕ⧰⧇āĨ¤


Q12. A: Ribosome makes protein R: It contains RNA


Ans: Both true


Q13. A: Plant cells have vacuole, R: It stores water


Ans: Both true


Q14. A: Animal cell has cell wall, R: It gives protection


Ans: A false, R true


Q15. A: Nucleus controls cell, R: It contains DNA


Ans: Both true


Diagram-Based


Q16. Identify powerhouse organelle


Ans: Mitochondria
Explanation: Produces energy. : āĻļāĻ•ā§āϤāĻŋ āĻ‰ā§ŽāĻĒāĻ¨ā§āύ āϕ⧰⧇āĨ¤


Q17. Identify control center


Ans: Nucleus
Explanation: Controls activities. : āϏāĻ•āϞ⧋ āĻ•āĻžāĻŽ āύāĻŋāϝāĻŧāĻ¨ā§āĻ¤ā§ā§°āĻŖ āϕ⧰⧇āĨ¤


Q18. Identify plant-only structure


Ans: Cell wall
Explanation: Provides strength. : āĻļāĻ•ā§āϤāĻŋ āĻĻāĻŋāϝāĻŧ⧇āĨ¤


Q19. Identify protein factory


Ans: Ribosome
Explanation: Makes protein. : āĻĒā§ā§°’āϟāĻŋāύ āϤ⧈āϝāĻŧāĻžā§° āϕ⧰⧇āĨ¤


Q20. Identify photosynthesis organelle


Ans: Chloroplast
Explanation: Makes food using sunlight. : āĻ¸ā§‚ā§°ā§āϝ⧰ āĻĒā§‹āĻšā§°ā§‡ āĻ–āĻžāĻĻā§āϝ āϤ⧈āϝāĻŧāĻžā§° āϕ⧰⧇āĨ¤


Final Revision


Nucleus = control : āύāĻŋāωāĻ•ā§āϞāĻŋāϝāĻŧāĻžāĻ› = āύāĻŋāϝāĻŧāĻ¨ā§āĻ¤ā§ā§°āĻŖ
Mitochondria = energy : āĻŽāĻžāχāϟ’āĻ•āĻŖā§āĻĄā§ā§°āĻŋāϝāĻŧāĻž = āĻļāĻ•ā§āϤāĻŋ
Ribosome = protein : ā§°āĻžāχāĻŦ’āϛ⧋āĻŽ = āĻĒā§ā§°’āϟāĻŋāύ