Question

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

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

Answer 1

Answer: (C)

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

Answer 2

During glycolysis in the presence of enzyme glyceraldehyde phosphate dehydrogenase, glyceraldehyde $3$-phosphate loses hydrogen to $NAD$ to form $NADH_2$ and accepts inorganic phosphate to form $1$, $3$-diphosphoglycerate.