Bio-energetics Mcqs

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Mdcat Test

Bio-energetic

Bioenergetic Mcqs for any kind of medical exam

MDCAT, KMUCAT, NEET, JEE IMAT

1 / 14

1. The majority of ATP in aerobic respiration is produced in:

Electron Transport Chain

Calvin Cycle

Glycolysis

Krebs Cycle

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2. Which factor is least likely to affect the rate of photosynthesis?

Oxygen concentration

Temperature

Carbon dioxide concentration

Light intensity

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3. Photosystem II differs from Photosystem I in that:

Photosystem I generates oxygen.

Photosystem II operates only in the dark.

Photosystem II uses water as an electron donor.

Photosystem I is involved in the Calvin cycle.

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4. Glycolysis results in the net production of which of the following per glucose molecule?

2 ATP, 4 NADH

4 ATP, 4 NADH

2 ATP, 2 NADH

4 ATP, 2 NADH

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5. Which of the following best describes the Calvin Cycle?

It occurs in the thylakoid membrane.

It is dependent on light energy.

It produces oxygen as a byproduct.

It synthesizes glucose from CO2 and H2O.

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6. What is the primary purpose of the light-dependent reactions of photosynthesis?

To produce glucose

To generate ATP and NADPH

To fix carbon into a stable form

To convert CO2 into oxygen

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7. Which of the following is a final electron acceptor in anaerobic respiration?

Sulfate

Oxygen

NAD+

Water

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8. During oxidative phosphorylation, ATP is generated through the process known as:

Chemiosmosis

Substrate-level phosphorylation

Photophosphorylation

Fermentation

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9. Which of the following is true about the role of light in photosynthesis?

It fixes carbon dioxide into organic molecules.

It is required in the Calvin cycle.

It directly synthesizes glucose.

It provides energy to split water molecules

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10. Which of the following distinguishes anaerobic from aerobic respiration?

Aerobic respiration produces lactic acid.

Anaerobic respiration requires oxygen.

Both produce equal amounts of ATP.

Anaerobic respiration does not involve the Krebs cycle.

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11. Which of the following statements is correct about light-dependent and light-independent reactions?

Light-dependent reactions produce glucose.

Both occur in the stroma.

Light-independent reactions require ATP and NADPH.

Light-dependent reactions fix CO2.

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12. Which of the following statements is true about the overall process of photosynthesis?

It releases CO2 and consumes oxygen.

It stores energy in the form of glucose.

It only occurs in the presence of oxygen.

It converts chemical energy into light energy.

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13. Which molecule is a product of non-cyclic photophosphorylation in photosynthesis?

ADP

NADP+

Carbon dioxide

Oxygen

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14. Where does glycolysis occur within the cell?

Mitochondria

Nucleus

Chloroplast

Cytoplasm

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User Name	Duration	Score
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Muskan	5 minutes 37 seconds	42%
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