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4-6
4-6

... protein synthesis is depressed by ARF and protein degradation is increased even in the presence of insulin [9]. Acidosis was identified as an important factor in muscle protein breakdown. Metabolic acidosis activates the catabolism of protein and oxidation of amino acids independently of azotemia, a ...
INTRODUCING AMINO ACIDS
INTRODUCING AMINO ACIDS

... If you look carefully, you will spot the abbreviations for glycine (Gly) and alanine (Ala) amongst the others. If you followed the protein chain all the way to its left-hand end, you would find an amino acid residue with an unattached -NH2 group. The N-terminal is always written on the left of a dia ...
to linear sequence of 20 amino acids.
to linear sequence of 20 amino acids.

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The pyruvate dehydrogenase complex of the chemol
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... providing a link between glycolysis and the Kreb's cycle. The reaction takes place in several steps. In the first, pyruvate decarboxylase converts pyruvate to hydroxyethylthiamin pyrophosphate. Next the transacetylase shifts the two-carbon fragment from thiamin pyrophosphate to lipoic acid and from ...
References - The University of New Mexico
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... of pyruvate vs. lactate. For pH conditions of 6.0 and 7.0, respectively, H+ coefficients (-‘ve values = H+ release) for the creatine kinase, adenylate kinase, AMP deaminase and ATPase reactions were 0.8 and 0.97, -0.13 and -0.02, 1.2 and 1.09, and -0.01 and -0.66, respectively. The glycolytic pathwa ...
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Poster

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Carbohydrate Metabolism in Rhizobium trifolii
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... ester; write the balanced chemical equation for the formation of an ester. Draw the condensed structural formulas for the products from acid and base hydrolysis of esters. Give the common names for amines; draw the condensed structural formulas when given their names. Classify amines as primary, sec ...
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www.xtremepapers.net

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... stool (Groff et al., 1999). Diet with high fibre content have been used for weight control and fat reduction, as they give a sense of satiety even when small food is eaten (Ekop, 2004). Amino acids The results for this determination are in Table 2 which shows seventeen amino acid analysed. The resul ...
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Question paper - Unit A173/02 - Module C7 - Higher tier

... Acknowledgements Booklet. This is produced for each series of examinations and is freely available to download from our public website (www.ocr.org.uk) after the live examination series. If OCR has unwittingly failed to correctly acknowledge or clear any third-party content in this assessment materi ...
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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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