Question

In glycolysis pathway which of the following steps show reduction of co-enzyme?

• A. 1,3-diphosphoglycerate to 3-phosphoglycerate
• B. Glucose 6-phosphate to fructose 6-phosphate
• C. Glyceraldehyde 3-phosphate to 1,3-diphosphoglycerate
• D. 3-phosphoglycerate to 2-phosphoglycerate

Answer 1

Answer: (C)

Glyceraldehyde 3-phosphate to 1,3-diphosphoglycerate

In glycolysis pathway, glyceraldehyde 3-phosphate is converted to 1,3 diphosphoglycerate. In this step, NAD${}^{+}$ is reduced as NADH${}_2$. Nicotinamide adenine dinucleotide (NAD) is a coenzyme found in all living cells.

So, the correct answer is 'Glyceraldehyde 3-phosphate to 1,3-diphosphoglycerate'