CHP2 Chemistry of Life

o2 binding to hemoglobin in rbcs rxtn rates

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Unformatted text preview: roceed from side w/ reversible [greater reactants] to [lesser] • Ex.~ O2 binding to hemoglobin in RBC’s Rxtn Rates & Metabolism Rxtn 3 main factors affecting rxtn rates~ • [reactants]- more molecules, more likely they’ll collide more more often, leads to increased rxtn rates often, • Temperature- molecules move more rapidly @ higher temps • Catalysts- substances that ‘speed up’ rxtn rates by binding & substances altering shape of reactants to become more likely to react w/ each other each • Enzymes are most important (& most common) catalysts Metabolism= sum of all chemical rxtn w/in cells Metabolism • Catabolism- energy (ATP) released from breakdown of lrgr energy molecules (glucose, or other organic compounds) • Exergonic reactions release free energy (to do work + heat) • Anabolism- requires energy (ATP) for protein synthesis, requires nerve impulse, muscle contraction, etc. nerve • Endergonic reactions requires input of energy Organic Compounds Organic Organic chemistry= study of compounds of carbon (C)• 4 primary classes of organic compoun...
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This note was uploaded on 01/12/2014 for the course ZOO 250 taught by Professor Staff during the Fall '08 term at S.E. Louisiana.

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