BIOCHEMISTRY
ENZYMES AND METABOLISM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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glucose, NAD+
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pyruvate, NAD+
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glucose, NADH
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pyruvate, NADH
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Detailed explanation-1: -Note:The overall glycolysis process involves oxidation of glucose to pyruvate, reduction of NAD+ to NADH, and phosphorylation of the ADP to ATP.
Detailed explanation-2: -There is one redox reaction during glycolysis. The oxidation of glucose begins during glycolysis. NAD+ accepts the electrons during the oxidation, and as a result it gets reduced. A total of 2 NADH are produced.
Detailed explanation-3: -Glycolysis occurs in the cytoplasm where one 6 carbon molecule of glucose is oxidized to generate two 3 carbon molecules of pyruvate. The fate of pyruvate depends on the presence or absence of mitochondria and oxygen in the cells.
Detailed explanation-4: -During glycolysis, glucose ultimately breaks down into pyruvate and energy; a total of 2 ATP is derived in the process (Glucose + 2 NAD+ + 2 ADP + 2 Pi–> 2 Pyruvate + 2 NADH + 2 H+ + 2 ATP + 2 H2O).
Detailed explanation-5: -The carbon atoms in glucose are oxidized. That is, they lose electron and go to a higher oxidation state. The oxygen atoms in molecular oxygen are reduced.