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unit 4 practice
unit 4 practice

... reactions  occurs.  The  order  in  which  the  species  listed  above  would  react  is  _____  ,  _____  ,  _____  ,  and   _____     ...
Glucose-6-Phosphate Dehydrogenase (G6PD) deficiency
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Chapter 3 - Evangel University
Chapter 3 - Evangel University

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Biochemistry - CEU Cardenal Herrera
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26. oxidation of amino acids

... metabolic energy derived from amino acids varies greatly with the type of organism and with the metabolic situation in which an organism finds itself. Carnivores may derive up to 90% of their energy requirements from amino acid oxidation. Herbivores, on the other hand, may obtain only a small fracti ...
Energy coupling in Saccharomyces cerevisiae
Energy coupling in Saccharomyces cerevisiae

... et al., 2010). Process economy therefore provides a strong FEMS Yeast Res 12 (2012) 387–397 ...
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Citric acid cycle



The citric acid cycle – also known as the tricarboxylic acid (TCA) cycle or the Krebs cycle – is a series of chemical reactions used by all aerobic organisms to generate energy through the oxidation of acetate derived from carbohydrates, fats and proteins into carbon dioxide and chemical energy in the form of adenosine triphosphate (ATP). In addition, the cycle provides precursors of certain amino acids as well as the reducing agent NADH that is used in numerous other biochemical reactions. Its central importance to many biochemical pathways suggests that it was one of the earliest established components of cellular metabolism and may have originated abiogenically.The name of this metabolic pathway is derived from citric acid (a type of tricarboxylic acid) that is consumed and then regenerated by this sequence of reactions to complete the cycle. In addition, the cycle consumes acetate (in the form of acetyl-CoA) and water, reduces NAD+ to NADH, and produces carbon dioxide as a waste byproduct. The NADH generated by the TCA cycle is fed into the oxidative phosphorylation (electron transport) pathway. The net result of these two closely linked pathways is the oxidation of nutrients to produce usable chemical energy in the form of ATP.In eukaryotic cells, the citric acid cycle occurs in the matrix of the mitochondrion. In prokaryotic cells, such as bacteria which lack mitochondria, the TCA reaction sequence is performed in the cytosol with the proton gradient for ATP production being across the cell's surface (plasma membrane) rather than the inner membrane of the mitochondrion.
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