LINK REACTION AND KREB'S CYCLE
Pyruvate dehydrogenase and pyruvate decarboxylase remove hydrogen atoms and CO2 from the pyruvate, converting it into ACETATE. The H is accepted by NAD, and the CO2 is excreted. The acetate combines with coA to form ACETYL CoA. Per molecule of glucose, 2 CO2, 2 reduced NAD and 2 acetyl CoA are formed.

Acetate is released from acetyl CoA and bonds with oxaloacetate to form citrate. Citrate is dehydrogenated and decarboxylated, producing a 5C compound, CO2 and H. The 5C compound undergoes the same process, forming a 4C compound. The 4C compound has H removed in a series of reactions, where the H is then accepted by FAD and NAD and ATP is produced. Per molecule of pyruvate, 3 NADH, 1 FADH, 1 ATP, 2 CO2 and 1 regenerated oxacoacetate are formed.

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Biology Apunte sobre Respiration and ATP, creado por laura.burgess el 07/11/2013.