Question

Assertion (A) The conversion of glyceraldehyde -$3$ phosphate into $1,3$ - bisphosphoglycerate is an oxidation reaction.
Reason (R) The reaction in which $1,3$-bisphosphoglycerate is formed from glyceraldehyde-3phosphate utilises $NAD ^{+}$.

• A. If both A and R are true and R is the correct explanation of A.
• B. If both A and R are true, but R is not the correct explanation of A.
• C. If A is true, but R is false.
• D. If A is false, but R is true

Answer 1

Answer: (A)

Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
The conversion of glyceraldehyde-$3$-phosphate to $1,3$ -bisphosphoglycerate is an oxidation reaction.
This oxidation reaction occurs due to the use of $NAD ^{+}$ which gets converted to $NADH$ by accepting a hydrogen molecule and this reaction is catalysed by the enzyme
glyceraldehyde-$3$-phosphate dehydrogenase.