MCQ Collection
NET Applied Sciences MCQs
Practice NET Applied Sciences questions with answers and explanations.
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Correct Answer: D. Ribosome
Explanation:
Ribosomes translate mRNA into polypeptide chains.
They occur freely in cytoplasm or attached to rough ER.
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Correct Answer: A. Synthesis and processing of secreted and membrane proteins
Explanation:
Rough ER has ribosomes attached to its surface.
It folds and modifies proteins entering the endomembrane system.
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Correct Answer: B. Lipid synthesis and detoxification
Explanation:
Smooth ER lacks ribosomes.
It synthesizes lipids and helps detoxify chemicals.
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Correct Answer: C. Modification, sorting, and packaging of proteins and lipids
Explanation:
The Golgi receives materials from the ER.
It modifies and directs them to their destinations.
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Correct Answer: D. Lysosome
Explanation:
Lysosomes break down macromolecules and damaged cell parts.
Their enzymes work best in an acidic environment.
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Correct Answer: A. Production of ATP through aerobic respiration
Explanation:
Mitochondria convert energy from nutrients into ATP.
They contain their own DNA and ribosomes.
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Correct Answer: B. Chloroplast
Explanation:
Chloroplasts contain chlorophyll and photosynthetic membranes.
They convert light energy into chemical energy.
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Correct Answer: C. Storage and maintenance of turgor pressure
Explanation:
The central vacuole stores water, ions, pigments, and wastes.
Its pressure helps support plant tissues.
