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ENERGY-PRODUCING ABILITY OF BACTERIA
ENERGY-PRODUCING ABILITY OF BACTERIA

Long-term adaptation of Saccharomyces cerevisiae to the
Long-term adaptation of Saccharomyces cerevisiae to the

... Time-course analysis of intracellular amino acid profiles in the IAP-expressing strain C.U17 and the reference strain C.WT in chemostat cultivations. The amino acid concentrations in C.U17 (IAP, orange) and C.WT (WT, black) were log2-scaled and normalized to the initial concentration of the analyzed ...
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... complex molecules composed of many smaller molecules called amino acids. Amino acids have an amino group on one end, an R group, and a carboxyl group on the other end. An amino group consists of one nitrogen atom and two hydrogen atoms. There are more than 20 amino acids found in living things. All ...
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Biogeochemical Cycle ppt Worksheet B
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Biochem 330 Fall 2011 Problem Set II Enzyme Catalysis, Glycolysis
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... properties of carbon atoms allow carbon to form many different types of molecules with many different functions. In your answer: • define covalent bond • explain how carbon-based rings and chains can form very large molecules • name the four main types of carbon-based molecules in organisms and disc ...
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... mitochondria, decreasing the conversion to acetylCoA, and slowing the rate of the TCA cycle. The pyruvate that builds up in aerobic glycolysis is, in part, converted into lactate that is secreted, eliminating it from the pool and keeping glycolysis active. The secreted lactate lowers the pH of the c ...
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... lower as the enzyme’s active site would have denatured at this temperature. B. equal as lowering the temperature does not affect digestion of lactose. C. lower as there would be fewer collisions between the substrate and the enzyme. D. equal as the two test tubes contained the same amount of lactose ...
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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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