Question

In which of the following reactions of glycolysis, oxidation takes place?

• A. Glucose-$6- PO _{4}$ to fructose-$6- PO _{4}$
• B. Glyceraldehyde-$3$-phosphate to $1,3$ -bisphosphoglycerate
• C. $1,3$ -diphosphoglycerate to $3$ -phosphoglycerate
• D. $2$ -phosphoglycerate to phosphoglycerate

Answer 1

Answer: (B)

In glycolytic pathway, glyceraldehyde-$3$-phosphate is converted into $1,3$ -bisphosphoglyceric acid by an oxidation and phosphorylation reaction, which occurs in the presence of $H _{3} PO _{4}$ and coenzyme NAD.