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

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

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Water, pH and Macromolecules
Buffer solutions

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

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