In alcoholic fermentation, NAD+ is produced during theA. Reduction of acetaldehyde to ethanolB. Oxidation of glucoseC. Oxidation of pyruvate to acetyl CoAD. Hydrolysis of ATP to ADP

In alcoholic fermentation, NAD+ is produced during the A. Reduction of acetaldehyde to ethanol.

During alcoholic fermentation, glucose is initially broken down into pyruvate through glycolysis. This process generates 2 molecules of NADH (nicotinamide adenine dinucleotide) from 2 molecules of NAD+.

Then, in the subsequent steps of alcoholic fermentation, pyruvate is converted into acetaldehyde, and acetaldehyde is then reduced to ethanol. The reduction of acetaldehyde to ethanol is where NADH is oxidized back to NAD+, allowing it to be reused in glycolysis to continue the generation of ATP. This regeneration of NAD+ is crucial for glycolysis to continue, as glycolysis relies on NAD+ as a coenzyme to accept electrons during various reactions.