Cell Structure and It's Function | Practice MCQs for Mdcat | mosaicbro.com

Cell Structure and It's Function | Practice MCQs for Mdcat

7 of 54 questions (Page 6 of 8)

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36 Which of the following organelle is most abundant in those animal cells which exhibit phagocytic activity?
Correct Answer: B
Explanation: Phagocytic cells (e.g., macrophages) contain abundant lysosomes to digest engulfed material.
37 It is a disease characterized by the accumulation of lipids in the brain cells leading to mental retardation and even death:
Correct Answer: D
Explanation: Tay-Sachs disease results from lipid accumulation due to lysosomal enzyme deficiency.
38 Strictly speaking, autophagosomes are actually:
Correct Answer: C
Explanation: Autophagosomes fuse with lysosomes to form secondary lysosomes for cellular component recycling.
39 Suicidal bags are:
Correct Answer: B
Explanation: Lysosomes are termed 'suicidal bags' for their role in autolysis (cell self-digestion).
40 Which of the following eukaryotic organelle has symbiotic origin with bacteria?
Correct Answer: C
Explanation: Chloroplasts evolved from endosymbiotic cyanobacteria.
41 Chlorophyll molecule resembles:
Correct Answer: D
Explanation: Chlorophyll and heme (in hemoglobin) share a similar porphyrin ring structure.
42 Which of the following statement is incorrect?
Correct Answer: C
Explanation: Photosynthesis occurs in thylakoid membranes (grana), not the inter-granal space.
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