Question

1. during the krebs cycle, how many atp molecules are produced?

2
4
32
36

Explanation:

The Krebs Cycle (also known as the citric acid cycle) occurs in the mitochondria. For each molecule of glucose that enters cellular respiration, after glycolysis (which produces 2 ATP directly), the Krebs Cycle (per glucose, so two turns of the cycle as glucose is split into two pyruvate molecules which are converted to acetyl - CoA for the cycle) produces 2 ATP molecules directly (via substrate - level phosphorylation). The majority of ATP in cellular respiration comes from oxidative phosphorylation (from NADH and FADH₂ produced in glycolysis, the Krebs Cycle, and pyruvate oxidation).

Answer:

2