Select the true statements about secondary structure

A) In a β-pleated sheet, the side chains extend above and below the sheet

B) In an α-helix, the side chains are located inside the helix

C) The α-helix is held together by hydrogen bonds between the amide N-H and C=O groups

D) The secondary level of protein structure refers to the spatial arrangements of short segments of the protein

E) Peptide bonds stabilize secondary structure

Question

Ryleigh Adams

Biology

29 July, 11:16

Select the true statements about secondary structure

A) In a β-pleated sheet, the side chains extend above and below the sheet

B) In an α-helix, the side chains are located inside the helix

C) The α-helix is held together by hydrogen bonds between the amide N-H and C=O groups

D) The secondary level of protein structure refers to the spatial arrangements of short segments of the protein

E) Peptide bonds stabilize secondary structure

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Answers (1)

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Dale · Answer 1

Answer: The statemens correct are: A) In a β-pleated sheet, the side chains extend above and below the sheet,

C) The α-helix is held together by hydrogen bonds between the amide N-H and C=O groups

D) The secondary level of protein structure refers to the spatial arrangements of short segments of the protein

E) Peptide bonds stabilize secondary structure

Explanation: The statement B is incorrect, because the amino acid side chains extend outside the alpha-helix, not inside