Biology Bioenergetics ETEA 2023
PMDC Verified Question 30 of 67
In alcoholic fermentation _ ATP molecules are produced from 1 glucose molecule.
A
2
B
18
C
32
D
36
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option A: 2
Concept:

Fermentation pathways allow glycolysis to continue in the absence of oxygen but do not produce additional ATP themselves.

Solution:

  • During alcoholic fermentation, the entire energy yield comes solely from the preceding glycolysis step.
  • Glycolysis yields a net of 2 ATP per glucose molecule.
  • The subsequent steps (converting pyruvate to ethanol) consume NADH but produce no further ATP.


Why other options are incorrect:

  • 32 and 36 ATP represent the massive energy yields of aerobic respiration, which utilizes the electron transport chain.

Quality & Fidelity Assurance: Every question on BeambePrep is rigorously curated against the official PMDC syllabus with zero filler, zero out-of-syllabus content, and zero typos. When an authentic past paper originally contained a historical mistake or ambiguity from the examining board (such as UHS or NUMS), BeambePrep faithfully reflects the original paper while detailing the nuance and scientific consensus in the autopsy above.

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