Proteins Found in Humans Are Polymers That Consist of Different

Multiple Choice

Proteins found in humans are polymers that consist of different combinations of 20 amino acids. Proline, one of the 20 amino acids, has the molecular formula, C₅H₉NO₂. If a human protein has 25 proline monomers, how many carbon atoms from proline are present in the protein?

A) 4 C atoms
B) 25 C atoms
C) 40 C atoms
D) 100 C atoms
E) 125 C atoms