STANDARDChemistry-Metabolic Pathways
STANDARD Chemistry Fermentation Multiple Correct Question
Type: Multiple Correct-conceptual-Hard
Find out in which of the following enzymatic reactions, NADH is converted to NAD: (A) Acetaldehyde → Ethanol (B) Glyceraldehyde 3 – Phosphate → 3 – phosphoglyceric acid (C) Pyruvic acid → lactic acid (D) Oxalosuccinic acid → α-ketoglutaric acid (E) α-ketoglutaric acid → succinyl CoA
A
B, C
B
D, E
C
A, B
D
A, C
Correct Answer
Option A, C
Detailed Explanation
In reactions A and C, NADH is oxidized to NAD⁺. In reaction A, acetaldehyde is reduced to ethanol, and in reaction C, pyruvic acid is reduced to lactic acid.
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