Additional Practice Questions 1: At the end of glycolysis, a molecule of glucose

Question

Additional Practice Questions 1: At the end of glycolysis, a molecule of glucose has been converted to 2 molecules of In addition, the glycolytic pathway generates 2 molecules of, and a net of 2 molecules of Choose from: FAD; NAD"; . ADP: lactic acid: NADPH; pyruvate, NADH, ATP: H2O 2: As a result of glycolysis, pyruvate oxidation and the tricarboxylic acid cycle, only a small portion of the energy of glucose has been converted to ATP. At this point, the majority of the usable energy is contained in: A. B. C. oxidized electron carriers NAD and FAD carbon dioxide and water pyruvate acetyl coenzyme A reduced electron carriers NADH and FADH E.

Explanation / Answer

1) Glycolysis is the metabolism of glucose and its conversion to pyruvate

At the end of glycolysis, a molecule of glucose has been converted to two molecules of pyruvate. In addition, the glycolytic pathway generates 2 molecules of NADH, and a net of 2 molecules of ATP.

Explanation: End product of glycolysis of 1 glucose molecule is 2 pyruvate molecules. 2 NAD+ + Pi molecules are converted to 2 molecules of NADH + H+.during biotransformation of glyceraldehyde-3-phosphate to 1, 3-biphosphoglycerate. The pathway involves an overall generation of 2 ATP molecules (taking into account the 2 ADP molecules generated).

2) Ans (C) Pyruvate.

Explanation: Glycolysis pathway generates energy from glucose in the form of ATP, NADH and pyruvate. This pyruvate then enters Krebs cycle to release further energy.

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