Water, pH and Macromolecules
The reactions of molecules

All of these
require an enzyme in all cases
are the reactions of the functional groups
are independent of the functional groups

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Water, pH and Macromolecules
Buffer solutions

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
are rarely found in living systems

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Water, pH and Macromolecules
Which of the following character does not apply to water?

All three atoms in the water molecule readily form hydrogen bonds
The water molecule is asymmetric
The water molecule readily forms hydrophobic interactions
The covalent bonds in water are highly polarized

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