In the cell respiration of glucose, carbon dioxide is formed during which stage?
A)glycolysis
B)the Krebs cycle
C)the cytochrome (electron) transport system
D)all three stages

Question

Quizplus · Accepted Answer

The Krebs cycle is also known as the citric acid cycle, and it is where the majority of carbon dioxide is generated during cellular respiration. During this cycle, acetyl-CoA is further broken down and CO2 is released as a byproduct. Glycolysis produces pyruvate, but only a small amount of CO2 is produced during this stage. The cytochrome (electron) transport system is where ATP is generated, but it does not produce CO2. Therefore, the best choice is B) the Krebs cycle.

In the Cell Respiration of Glucose, Carbon Dioxide Is Formed