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Lipids (lect 4))
Lipids (lect 4))

... Site: cytoplasm of liver and adipose tissues Steps: see figure 1- Activation of fatty acids into acyl CoA 2- Activation of glycerol into 3-glycerophosphate 3-Combination of activated fatty acid and glycerol to form DAG then TAG as in figure. ...
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... Normally , 10% of glucose is metabolized through this pathway which operates in the cytoplasm . Energy ( ATP ) is not generated nor required . ...
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CP-Bio Ch 3(Chemistry of Life)

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... acid synthesis, glyceroneogenesis, and nonessential amino acid synthesis. When interpreting results from [U-13Cn]-labeled tracers, it is important to note that appearance of [U-13Cn] isotopomers can only derive from the administered tracer (e.g., dietary [U-13C6]dextrin, n = 6). Therefore, when [U-1 ...
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... 8. Where does glycolysis occur? (be specific) ______________ 9. Where does the Krebs Cycle occur? (be specific) ________ 10. Where does the Electron Transport Chain occur? (be specific) _____________________ 11. Pyruvate is made in glycolysis and is shipped to the ___________________ for the Krebs c ...
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cellrespiration power pointtext

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anmol publications pvt. ltd.

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Characterization of AtAAP1 function in amino acid uptake by the root

... for gluconeogenesis from amino acids, in that the labeling levels when supplied with 13Clabeled amino acids were higher than could be accounted for by 13C labeling of the protein alone based on the C:N of protein versus bulk fungi. • Organic nitrogen probably preserves a carbon signature in fungal p ...
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... The Krebs Cycle cont. • Follow steps in your book, pgs 138-139 – In step 1, a two-carbon molecule of acetyl CoA combines with a four-carbon compound, oxaloacetic acid, to produce a six-carbon compound, citric acid – In step 2, citric acid releases a CO2 molecule and a hydrogen atom to form a five-ca ...
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... students are expected to be able to: 1.Describe the nature and sequence of the biochemical reactions in the principal metabolic pathways of carbohydrates, lipids and proteins. 2.Explain the biological significance and fates of the metabolic intermediates and end products of the principal metabolic p ...
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... • In most organisms, cellular respiration cannot occur without oxygen. Fermentation, a metabolic pathway that regenerates NAD+ from stockpiles of NADH, allows glycolysis to continue producing ATP in the absence of oxygen. • Fermentation occurs when pyruvate or a molecule derived from pyruvate accept ...
syllabus - option b(human biochemistry)
syllabus - option b(human biochemistry)

... The aim of this option is to give students an understanding of the chemistry of important molecules foundin the human body, and the need for a balanced and healthy diet. Although the role that these molecules play in the body should be appreciated, the emphasis is placed on their chemistry, and stud ...
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... Nitrogen is an essential element found in proteins, nucleic acids and many other molecules Biologically available nitrogen is scarce Nitrogen incorporation begins with fixation (reduction) of N2 by prokaryotic microorganisms to form ammonia (NH3) Nitrogen supply is often the rate-limiting factor in ...
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PROTEOLYSIS is the breakdown of protein to free amino acids

... (1) Energy requirement. Two molecules of ATP are required for this reaction. (2) N-Acetylglutamate is a required positive allosteric effector. The activity of acetylglutamate synthetase, the enzyme that synthesizes N-acetylglutamate, is regulated by amino acid levels. c. Ornithine transcarbamoylase ...
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4)qualitative_tests_for_amino_acids

... technique is widely used for the detection and quantitation (measurement) of amino acids and peptides. -Ninhydrin is a powerful oxidizing agent which reacts with all amino acids between pH 4-8 to produce a purple colored-compound. -The reaction is also given by primary amines and ammonia but without ...
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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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