In the citric acid cycle,
A) carbon dioxide is released.
B) oxygen atoms are released.
C) 4 ATP molecules are formed.
D) hydrocholoric acid is released.

Question

Quizplus · Accepted Answer

Carbon dioxide is released during the citric acid cycle as a byproduct of the breakdown of acetyl-CoA. In this cycle, acetyl-CoA combines with oxaloacetate to form citrate, which undergoes a series of enzymatic reactions to produce carbon dioxide, ATP, and reduced coenzymes like NADH and FADH2. Oxygen atoms are not released in this cycle and hydrochloric acid is not involved. Only 1 ATP molecule is directly produced per cycle, but a total of 4 ATP molecules can be generated from the reduced coenzymes in subsequent oxidative phosphorylation.

In the Citric Acid Cycle