CELL RESPIRATION
THE KREBS CYCLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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acetyl CoA joins a 4 carbon molecule
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carbon dioxide is formed
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pyruvate joins ATP
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ATP become ADP
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Detailed explanation-1: -First, acetyl CoA combines with oxaloacetate, a four-carbon molecule, losing the CoA group and forming the six-carbon molecule citrate. After citrate undergoes a rearrangement step, it undergoes an oxidation reaction, transferring electrons to NAD+ to form NADH and releasing a molecule of carbon dioxide.
Detailed explanation-2: -Acetyl CoA to CO In the presence of oxygen, acetyl CoA delivers its acetyl group to a four-carbon molecule, oxaloacetate, to form citrate, a six-carbon molecule with three carboxyl groups; this pathway will harvest the remainder of the extractable energy from what began as a glucose molecule.
Detailed explanation-3: -Each Acetyl CoA consists of 2 carbon atoms.
Detailed explanation-4: -The entire citric acid cycle (see figure) as a final common pathway of degradation of the nutrients is introduced into citrate by the condensation reaction of oxaloacetate (C4 ) and acetyl-CoA.