During cellular respiration, each acetyl-CoA molecule that enters the Krebs cycle undergoes a series of enzymatic oxidation-reduction reactions in the mitochondrial matrix. What are the net direct products generated from the complete oxidation of one acetyl group during a single turn of the cycle?

A) 1 $\text{CO}_2$, 2 $\text{NADH}$, 2 $\text{FADH}_2$, and 1 $\text{ATP}$ (or $\text{GTP}$)

B) 2 $\text{CO}_2$, 2 $\text{NADH}$, 1 $\text{FADH}_2$, and 2 $\text{ATP}$ (or $\text{GTP}$)

C) 2 $\text{CO}_2$, 3 $\text{NADH}$, 1 $\text{FADH}_2$, and 1 $\text{ATP}$ (or $\text{GTP}$)

D) 3 $\text{CO}_2$, 3 $\text{NADH}$, 2 $\text{FADH}_2$, and 1 $\text{ATP}$ (or $\text{GTP}$)

Krebs cycle Knowledge-Based Practice

Biology · Cellular Energetics · Biology · Cellular Respiration

1 Biology practice questions on Krebs cycle. Questions that assess core concepts and understanding.

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Cellular Energetics · Biology

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