Water, pH and Macromolecules
A compound that is capable of forming hydrogen bonds with water

should act as a good buffer for acids and bases
contains at least some polar covalent bonds
does not dissolve well in water
is probably held together by noncovalent bonds

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Water, pH and Macromolecules
Buffer solutions

are rarely found in living systems
tend to maintain a relatively constant pH.
cause a decrease in pH when acids are added to them.
will always have a pH of 7

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