During lactic acid fermentation, net yield of ATP and NADH per mole of glucose is (A) 2 ATP and 2 NADH (B) 2 ATP and 0 NADH (C) 4 ATP and 2 NADH (D) 4 ATP and 0 NADH
During lactic acid fermentation, net yield of ATP and NADH per mole of glucose is
(A) 2 ATP and 2 NADH
(B) 2 ATP and 0 NADH
(C) 4 ATP and 2 NADH
(D) 4 ATP and 0 NADH
Answer
Answer: (B) 2 ATP and 0 NADH
In lactic acid fermentation, 2 ATP are generated per mole of glucose through substrate-level phosphorylation, and NADH is converted to NAD+ in the process of converting pyruvate to lactate. Thus, the net yield of NADH is effectively zero.