Which of the Following Is the Best Explanation of Why $\alpha$

question 4

Multiple Choice

Which of the following is the best explanation of why the $\alpha$ -helix and the $\beta$ -pleated sheet are the most stable protein conformations possible?

• A)Both structures reflect a maximum amount of hydrogen bonding
• B)Their local conformations have amide bonds that can break and reform
• C)All of the amino acids polymerize,primarily those that are large and/or polar,to form an \(\alpha\)-helix
• D)The secondary structure is strengthened by disulfide linkages
• E)The electrons in the nitrogen atoms in these structures exist in excited states

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