Peoblem:

Question: A fatty acid consists of a carboxyl group at one end of a hydrocarbon chain. It is an amphipathic molecule because it has both hydrophilic and hydrophobic ends. What makes the hydrocarbon tail hydrophobic?

a) The hydrocarbon tail is hydrophobic because it is held together by hydrogen bonds.

b) The hydrocarbon tail is hydrophobic because it is held together by nonpolar covalent bonds.

c) The hydrocarbon tail is hydrophobic because it is held together by polar covalent bonds.

d) The hydrocarbon tail is hydrophobic because it is held together by ionic bonds.

e) The hydrocarbon tail is hydrophobic because it is held together by ester bonds.

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