Which of the following pathways act as a source for the electrons carried by the NADH and FADH2 molecules shown in this figure?





a. glycolysis

b. both glycolysis and the citric acid cycle

c. the citric acid cycle

d. neither glycolysis nor the citric acid cycle


b. both glycolysis and the citric acid cycle
High energy electrons derived from the oxidation of food molecules during glycolysis and the citric acid cycle are transferred to the electron transport chain by the coenzymes NAD+ and FAD.

Biology & Microbiology

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