Question

Glyceraldehyde phosphate is oxidised in glycolysis. The hydrogen atom and electron liberated cause

• A. Oxidation of NAD${}^{+}$.
• B. Reduction of NAD${}^{+}$.
• C. Change in oxaloacetic acid.
• D. Formation of methane.

Answer 1

Answer: (B)

Reduction of NAD${}^{+}$.

Glyceraldehyde-3-phosphate is oxidized by the coenzyme nicotinamide adenine dinucleotide (NAD). NAD+ is an oxidizing agent - it accepts electrons from other molecules and becomes reduced.

So the correct option is 'Reduction of NAD+'.