This stage of cellular respiration ends with two ATP molecules and two NADH molecules. A. Krebs cycle B. Electron transport chain C. Calvin cycle D. Glycolysis

Question

Sterling

Chemistry

14 May, 05:09

This stage of cellular respiration ends with two ATP molecules and two NADH molecules. A. Krebs cycle B. Electron transport chain C. Calvin cycle D. Glycolysis

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Answers (2)

Know the Answer?

Milo Woodard · Answer 1

glycolysis

Jessica Davies · Answer 2

D. Glycolysis

Explanation:

In glycolysis, energy is required to break a molecule of glucose into two pyruvate molecules. These two pyruvate molecules are used during pyruvate oxidation; which is stage II of cellular respiration.

During glycolysis, two molecules of ATP are used and four molecules of ATP are produced. So there is a net gain of two ATP molecules. Hydrolysis of a glucose molecule produces high energy electrons which are used to reduce two NAD + molecules to NADH.

These two molecules are used in the citric acid cycle to produce more ATP molecules.