Glycolysis

Question

Glycolysis A) takes place in the mitochondrion. B) produces no ATP. C) has no connection with the respiratory chain. D) is the same thing as fermentation. E) reduces two molecules of NAD⁺ for every glucose molecule processed.

Accepted Answer

Glycolysis reduces two molecules of NAD+ (not NAD⁺) to NADH for every glucose molecule processed. Glycolysis takes place in the cytoplasm and is the first step in cellular respiration, which involves the production of ATP through oxidative phosphorylation in the respiratory chain (so it does have a connection with the respiratory chain). Fermentation is a different metabolic pathway that can occur in the absence of oxygen, and it does not produce ATP through oxidative phosphorylation.