Question

The Krebs cycle produces electron carrier molecules. Where do these carrier molecules deliver the electrons produced in the Krebs cycle?
A.
glycolysis

B.
the electron transport chain

C.
lactic acid fermentation

D.
alcohol fermentation

Answer 1

B. the electron transport chain

NADH and FADH2 produced in the Krebs cycle donate their electrons to the electron transport chain in the inner mitochondrial membrane, driving oxidative phosphorylation and ATP production.