KAPLAN MCAT PRACTICE PROBLEM

Kaplan MCAT

PRACTICE PROBLEM

QUESTION

An alpha helix is most likely to be held together by: A. disulfide bonds. B. hydrophobic effects. C. hydrogen bonds. D. ion attractions between side chains.

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strong interactions in secondary structure. if they were charged, the side chains of amino acids are too far apart to participate in bic effects, choice (B), are primarily involved in tertiary structures, not secondary. Even groups and amino groups of amino acids. Disulfide bridges, choice (A), and hydropho- C. The alpha helix is held together primarily by hydrogen bonds between the carboxyl

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