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

In a typical aerobically respiring eukaryotic cell, which process produces most ATP from complete oxidation of glucose?

A.Substrate-level phosphorylation during cytosolic glycolysis
B.Fermentation reactions that regenerate cytosolic NAD+
C.Oxidative phosphorylation at the inner mitochondrial membrane
D.RNA transcription occurring inside the cell nucleus

Explanation

Core Concept

During aerobic respiration, glycolysis and the citric acid cycle make some ATP directly, but oxidative phosphorylation produces the largest share. Electron transport establishes the proton-motive force that ATP synthase uses to make ATP.

Correct Answer

COxidative phosphorylation at the inner mitochondrial membrane

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