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Metabolism - Metabolism metabolism all chemical reactions...

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Metabolism - metabolism : all chemical reactions occurring in the body & necessary to maintain life o anabolism : reactions that build up molecules (larger molecules are built from smaller molecules) example: bonding of amino acids to make a protein o catabolism : reactions that break down molecules (complex structures are broken down into simpler ones) example: cellular respiration (food fuels broken down in cells & energy released is captured to make ATP) - phosphorylation : addition of a phosphate molecule to another molecule (usually a protein or nucleotide (ADP)) o often used to activate a protein or chemical (sometimes used to inactivate) - oxidation : the gain of oxygen or the loss of hydrogen (or electrons) - reduction : the loss of oxygen or the gain of hydrogen (or electrons) - oxidation-reduction (redox) reactions : one molecule is oxidized (loses electrons & energy) while another molecule is reduced (gains electrons & energy) o dehydrogenases : enzymes that catalyze transfer of hydrogen Kevin Kelleher, MTC
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