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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rzamorauk rzamorauk · Answer 1 · 2019-09-25T23:57:15+02:00

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