21. NADH reduces the rate of all of the following except ___________. a. -Ketogl

Question

21. NADH reduces the rate of all of the following except ___________.

a. -Ketoglutarate dehydrogenase

b. Succinyl-CoA synthetase

c. Isocitrate dehydrogenase

d. Malate dehydrogenase

22. Which is the net equation of glycolysis as it occurs in aerobic cells such as brain cells?

a. Glucose + 2 ATP à   2 lactate + 2 ADP + 2 Pi

b. Glucose + 2 ADP + 2 Pi + 2 NAD+ à  2 pyruvate + 2 ATP + 2 NADH + 4 H+

c. Glucose + 2 ADP + 2 Pi  à   2 lactate + 2 ATP + 2 H+

d. Glucose + 2 ADP + 2 Pi  à   2 CH3CH2OH + 2 CO2   + 2 ATP

Explanation / Answer

Except Succinyl-CoA synthetase NADH reduces  -Ketoglutarate dehydrogenase, Isocitrate dehydrogenase and Malate dehydrogenase.

Hence, the correct optioin is (b) Succinyl-CoA synthetase

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The net equation of glycolysis as it occurs in aerobic cells such as brain cells is as follws:

Glucose + 2 ADP + 2 Pi  à   2 CH3CH2OH + 2 CO2   + 2 ATP

Hence, correct option is (b)

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