Q. In which of the following reactions of glycolysis, oxidation takes place?
A) Glucose 6-P$O_{4}$ to fructose 6-P$O_{4}$
B) Glyceraldehydes 3-phosphate to 1, 3-diphosphoglycerate
C) 1,3-diphosphoglycerate to 3-phosphoglycerate
D) 2-phosphoglycerate to phosphoglycerate
Explanation
In glycolytic pathway, 3PGAL is converted into 1, 3-diphosphoglyceric acid by an oxidation and phosphorylation reaction, which occurs in presence of H₃PO₄ and coenzyme NAD. 3-phosphoglyceraldehyde + NA$D^{+}$ + P$i^{- 2}$ $\rightarrow$ 3-phosphoglyceraldehyde dehydrogenase 1, 3-diphosphplyceric acid + NADH +$H^{+}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.