Different macromolecules are organized in different manners that takes into consideration the different intermolecular forces and other interactions present due to the different functional groups present in the molecule. In the given figure, the presence of N and C ends for the polymer, as well as the repeating planar regions indicate that this is a polypeptide and the planar regions show the peptide bonds present.
The structure below depicts a(n):
A. antiparallel β-sheet
B. parallel β-sheet
C. B-form of DNA
E. poly(proline) helix
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