Oxidative phase of glycolysis starts with dehydrogenation of:
Correct answer: C. Glyceraldehyde 3-phosphate
- A. Glycolysis
- B. Ribulose Bisphosphate
- C. Glyceraldehyde 3-phosphate
- D. NADH
Explanation
In the oxidative phase, each molecule of glyceraldehyde 3-phosphate (produced earlier in the preparatory phase) undergoes dehydrogenation. This involves the removal of a hydrogen atom from glyceraldehyde 3-phosphate, which is transferred to a molecule of NAD+ (nicotinamide adenine dinucleotide) to form NADH. The resulting molecule is 1,3-bisphosphoglycerate.
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About Bioenergetics
Cellular respiration explains how cells release energy from glucose through glycolysis, the link reaction, Krebs cycle and electron transport chain. It includes ATP production, substrate-level and oxidative phosphorylation, aerobic versus anaerobic respiration, and the roles of mitochondria, oxygen and fermentation in energy transfer.
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