In glycolytic pathway which of the following steps shows reduction of co-enzyme?

Options

(a) 1,3-diophosphoglycerate to 3- phosphoglycerate
(b) Glucose 6-phosphate to fructose 6- phosphate
(c) Glyceraldehyde 3-phosphate to 1,3-diphospho-glycerate
(d) 3-phosphoglycerate to 2-phosphoglycerate

Correct Answer:

Glyceraldehyde 3-phosphate to 1,3-diphospho-glycerate

Explanation:

During glycolysis in the presence of enzyme glyceraldehyde phosphate dehydrogenase, glyceraldehyde 3-phosphate loses hydrogen to NAD to form NADH2 and accepts inorganic phosphate to form 1,3-diphosphoglycerate.