Bioenergetics| NTS Sindh Mdcat Past Paper MCQs | mosaicbro.com

Bioenergetics| NTS Sindh Mdcat Past Paper MCQs

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8 Enzymes associated with Krebs cycle are found in:
Correct Answer: D
Explanation: Krebs cycle enzymes are localized in the mitochondrial matrix.
9 Xanthophyll is a pigment having:
Correct Answer: A
Explanation: Xanthophylls are yellow accessory pigments in chloroplasts.
10 There are different types of chlorophyll like chlorophyll a, and:
Correct Answer: A
Explanation: Chlorophyll types include a, b, c, d, and e (though a and b are most common).
11 Enzyme carbonic anhydrase in RBCs helps in ______ transportation.
Correct Answer: D
Explanation: Carbonic anhydrase catalyzes CO₂ transport as bicarbonate (HCO₃⁻) in blood.
12 Which of the following statements regarding photosynthesis is not true:
Correct Answer: B
Explanation: The Calvin cycle (dark reactions) can occur in light or dark if ATP/NADPH are available.
13 Where do the light-dependent reactions of photosynthesis occur?
Correct Answer: C
Explanation: Light reactions occur in thylakoid membranes where chlorophyll is located.
14 The dark reactions of photosynthesis are characterized by:
Correct Answer: B
Explanation: Calvin cycle uses ATP and NADPH (from light reactions) to fix CO₂ into sugars.
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