CELL RESPIRATION
THE KREBS CYCLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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4C molecule
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citric acid (6C)
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oxaloacetic acid (4C)
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5C molecule
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Detailed explanation-1: -It is a series of eight-step processes, where the acetyl group of acetyl-CoA is oxidised to form two molecules of CO2 and in the process, one ATP is produced. Reduced high energy compounds, NADH and FADH2 are also produced.
Detailed explanation-2: -FAD can be reduced to FADH2 through the addition of 2 H+ and 2 e−. FADH2 can also be oxidized by the loss of 1 H+ and 1 e− to form FADH.
Detailed explanation-3: -One NADH molecule produces 3 ATP molecules. Whereas one FADH2 molecule produces 2 ATP molecules.
Detailed explanation-4: -So, the correct option is ‘ Krebs cycle’.
Detailed explanation-5: -Answer and Explanation: NADH and FADH2 are oxidized during the electron transport chain. NADH and FADH2 are electron carriers. They are reduced as glucose is oxidized during glycolysis and the citric acid cycle.