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Water, pH and Macromolecules

Water, pH and Macromolecules
The dissociation constant of H2O at 25° C is

1014 M
10-7 M
107 M
10-14 M

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Water, pH and Macromolecules
The reactions of molecules

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

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Water, pH and Macromolecules
The reason that fats contain more energy than simple sugars, is fats have many more

hydrogen atoms
hydrogen bonds
carbon atoms
covalent bonds

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Water, pH and Macromolecules
If protein is made exclusively from nonpolar amino acids, then it will this protein interact with water?

be repelled by water
It will be attracted to water
It will form a membrane in water
It will act as a buffer and stabilize the pH

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Water, pH and Macromolecules
Molecules in which the atoms are held together by __________ bonds have the strongest chemical linkages.

noncovalent
hydrogen
covalent
ionic

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Water, pH and Macromolecules
The strength of an acid depends on

number of double bonds
number of neutrons gain
electronegativity
number of protons released

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