CELL RESPIRATION
AEROBIC RESPIRATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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pyruvate and carbon dioxide
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carbon dioxide and co-enzyme A
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carbon dioxide, acetyl coA and reduced NAD
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Reduced NAD and carbon dioxide
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Detailed explanation-1: -Firstly, the link reaction produces one molecule of carbon dioxide and one molecule of reduced NAD. Its final product, acetyl coenzyme A, becomes a primary reactant of the Krebs cycle. The Krebs cycle produces one molecule of FADH2 and three molecules of NADH. It also produces two molecules of carbon dioxide.
Detailed explanation-2: -The Link Reaction This stage does not produce any energy in the form of ATP but does produce reduced NAD and acetyl CoA. Reduced NAD will be used in oxidative phosphorylation while the acetyl CoA will be used in the next stage of aerobic respiration, the Krebs cycle.
Detailed explanation-3: -The end product of the link reaction, acetyl-coenzyme A, then enters into the Krebs Cycle. The purpose of the Krebs Cycle is to produce energy through the oxidation of acetyl-coenzyme A.
Detailed explanation-4: -The link reaction converts pyruvate produced by glycolysis into acetyl coenzyme A, which enters the Krebs cycle. Acetyl coenzyme A joins oxaloacetic acid to form citric acid. Citric acid undergoes a series of reactions to reform oxaloacetic acid.