Question

fermentation by itself produces no atp but keeps glycolysis going, which produces a small amount of atp. how does fermentation do this? fermentation produces nadh, which fuels the electron transport chain and facilitates chemiosmosis. fermentation reduces nad+ to nadh, which facilitates the production of atp in glycolysis. fermentation oxidizes nadh to nad+, which facilitates the production of atp in glycolysis. fermentation produces lactate, which keeps glycolysis going. fermentation oxidizes the carbons in pyruvate to co₂, which is then used in glycolysis. i dont know yet

Explanation:

Fermentation occurs in the absence of oxygen. In glycolysis, \(NAD^+\) is reduced to \(NADH\). For glycolysis to continue, \(NAD^+\) must be regenerated. Fermentation oxidizes \(NADH\) back to \(NAD^+\) (e.g., in lactic acid fermentation or alcoholic fermentation). This \(NAD^+\) is then available for glycolysis to proceed, as glycolysis requires \(NAD^+\) as a co - enzyme. Glycolysis produces a small amount of ATP (2 ATP per glucose molecule).

Answer:

Fermentation oxidizes NADH to NAD⁺, which facilitates the production of ATP in glycolysis.