Apentix/AP Biology/Unit 3: Cellular Energetics/Question
AP Biologymediummcq1 pt

Which comparison between aerobic respiration and glycolysis supported by fermentation is most accurate?

A.Fermentation itself produces more ATP per glucose than aerobic respiration
B.Both routes produce equal ATP because each one begins with glycolysis
C.Aerobic respiration bypasses glycolysis and starts inside mitochondria
D.Aerobic respiration yields more ATP because oxidative phosphorylation follows glycolysis

Explanation

Core Concept

Both routes can begin with glycolysis, but aerobic respiration continues through pyruvate oxidation, the citric acid cycle, and oxidative phosphorylation. Fermentation mainly regenerates NAD+ so glycolysis can continue and does not itself provide the large additional ATP yield.

Correct Answer

DAerobic respiration yields more ATP because oxidative phosphorylation follows glycolysis

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