BIOL 2020 Study Guide - Final Guide: Phenylalanine, Zymogen, Enzyme Inhibitor
13 Jan 2018
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Weaker, but additive (present in large numbers) Transient - can be broken and reformed. Any two atoms in close proximity i)electrostatic interactions: attractive interaction between oppositely charged atoms/groups ii)hydrogen bonds: h atom shared between 2 en atoms: vdw: between molcules w temporary dipoloes form fluctuating electrons. Essential buffer to regulate temp and ph. Regulate ph, serve as h acceptor n donor. Dispersion of lipids in h2o , each lipid forces surrounding h2o molecules to become highly ordered. Ionic head towards water, nonpolar region away from water ph differences 10 from each other. Acid strength measuerd by dissociated constant ka and pka. Weaker acids have measurable pka (higher pka) Resist change in ph, important for molecular structure and activity. Blood, ph slight change can cause dmg. Buffer capacity: ability to withstand changes in ph; concentration and environemnt dependt. Factors: purity, solubility, reactivity/solubility, affected by environment natural/synthetic buffers. Phosphate , proteins + peptides like hemo and albumin,
