Because of hydrogen bonding, water is uniquely suited for its central role in life. Many hydrophilic molecules interact freely with water, but there are a number of hydrophobic molecules important for life, too
How does the interaction between water and hydrophobic molecules help to organize biological systems?
A. Because cells are not pure water (they have many substances dissolved within them), the hydrophilic/hydrophobic effect has little role in biological organization.
B. The ionic bonds between water cause hydrophobic molecules to associate with one another and not with water molecules.
C. Because water molecules preferentially associate with one another, they force hydrophobic molecules to associate with one another and not with water molecules.
D. None of the above
Answer: C
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