Why is it important that fermentation produce NAD+?

Answer 1

Fermentation follows glycolysis.
Glycolysis adds electrons to NAD+ to make NADH. The NAD+ is an electron carrier.

Fermentation removes the electron from NADH to return NAD+ to the process of glycolysis so glycolysis can continue. If NADH didn't have the electron removed, the molecule couldn't pick up another electron, and glycolysis would stop.

Think of NAD+ as a wheelbarrow that carries electrons. If the wheelbarrow is already full, you can't use the same wheelbarrow to move carry anything else unless you empty it out. Glycolysis fills up the NAD+ wheelbarrow. Fermentation empties it out.

Answer 2

Fermentation Nadh

Answer 3

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The answer should be A, to maintain the reactions of glycolysis. Fermentation occurs under anaerobic conditions, meaning there is not oxygen present. That means, there is no electron transport chain because there isn't any oxygen to "pull" the electrons. So the ATP production relies on the reactions in glycolysis. And glycolysis reactions require NAD+ to make NADH. Usually, the NADH returns to NAD+ by the electron transport chain. But since there isnt any electron transport chain, fermentation must generate NAD+ on its own to allow glycolysis to continue.

Answer 4

Fermentation is the anaerobic catabolism of organic compounds. Fermentation regenerates NAD through transfer of e- from NADH to pyruvate or a derivative. It is important because pyruvate or derivative is the final electron acceptor in ferementation.

its a little science based, but i hope it helps!