Water, pH and Macromolecules
Hydrogen bonds and hydrophilic interactions are types of

weak chemical bonds that link together separate molecules
strong chemical bonds that link together separate molecules
strong chemical bonds that hold together the atoms within a molecule
weak chemical bonds that hold together the atoms within a molecule

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Water, pH and Macromolecules
Buffer solutions

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

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