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12 Cards in this Set

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amino
polar, water soluble, weak base can accept H
carbonyl
polar and water soluble, in sugars, if at end: aldehyde (formaldehyde), if internal: ketone (acetone)
carboxyl
polar and water soluble,donates protons, acidic, organic acids (acidic acid)
Hydroxyl
OH
Polar, water soluble, compounds with OH are alcohols
Phosphate
polar and water soluble, loses protons, therefore acid, can lose two protons (neg charged), very biologically important in energy storage
Sulfhydryl
SH
Help stabilize the structure of pprotein S-S links
hydrophyilic
ionic or polar
hydrophobic
nonionic, nonpolar
why do ionic or polar solutes dissolve in water?
electronegitivity
cohesion vs. adhesion
co- water molecules stick to eachother
ad- water molecules stick to other molecules
acid-base reaction
require a proton donor (becomes acid) and acceptor (becomes base)
pH=...
pH= -log(10)(H+)
logartithmic scale so each pH unit is 10x different. 7 is neutral, 5 acidic, 9 basic