Water, pH and Macromolecules
Most of the important functional groups in biological molecules contain

nitrogen and a phosphate
oxygen and/or nitrogen and are polar
oxygen and/or nitrogen and are acidic
oxygen and a phosphate

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

weak chemical bonds that hold together the atoms within a molecule
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

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