J Citric acid cycle 1 - Citric Acid Cycle. Part I. Citric...

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itric Acid Cycle. Part I. Citric Acid Cycle. Part I. earning Objectives he hub of intermediary metabolism Learning Objectives • General features of the citric acid cycle • The hub of intermediary metabolism • Pyruvate dehydrogenase multienzyme complex
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verview Overview • In aerobic organisms, metabolic fuels • The citric acid cycle is a central are oxidized in the citric acid cycle. y pathway for obtaining energy from carbohydrates, fatty acids, and amino ids Fig. 17-1 • Before entering the citric acid cycle, e metabolic fuels are decomposed acids. the metabolic fuels are decomposed and transformed to two-carbon acetyl groups -CO-CH 3 . •The acetyl groups are attached to CoA to form acetyl-CoA.
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Oxidative Fuel Metabolism termediates of the citric acid Intermediates of the citric acid cycle contain four to six carbon atoms and one to three bl i • Acetyl groups derived from ig 7- carboxylic groups. carbohydrates, amino acids, and fatty acids, enter the citric acids cycle. Fig. 17 1 • In the citric acid cycle, the etyl groups are oxidized to acetyl groups are oxidized to CO 2
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The Reactions of the Citric Acid Cycle he net reaction of the citric acid cycle: The net reaction of the citric acid cycle: 3 NAD + + FAD + GDP + P i + acetyl-CoA 3 NADH + FADH + GTP + 2CO +CoA 2 2 • The citric acid cycle is a series of eight reactions in which the etyl group of acetyl oA is oxidized to two molecules of CO acetyl group of acetyl-CoA is oxidized to two molecules of CO 2 . • In the oxidation process, four pairs of electrons are released.
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J Citric acid cycle 1 - Citric Acid Cycle. Part I. Citric...

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