. During the Krebs Cycle, high-energy electrons and hydrogen ions are transferred to carrier molecules to form NADH and FADH2. What are the two other molecules released during the Krebs Cycle?

Answer 1

During the Krebs Cycle, also known as the citric acid cycle or TCA cycle, two important molecules are released: carbon dioxide (CO2) and ATP (or GTP, depending on the cell type). Specifically:

1. Carbon Dioxide (CO2) - For each acetyl-CoA that enters the cycle, two molecules of CO2 are released as a byproduct during the decarboxylation steps.
2. ATP (or GTP) - The cycle produces one molecule of ATP (or GTP) directly through substrate-level phosphorylation during one turn of the cycle.

So, the two primary molecules released during the Krebs Cycle are carbon dioxide (CO2) and ATP (or GTP).