21. NADH reduces the rate of all of the following except ___________.
a. α-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
Except Succinyl-CoA synthetase NADH reduces α-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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