Question

question 5 1 pts proteins are polymers constructed from ______ monomers. hydrocarbon amino acid lipid nucleotide

Explanation:

To solve this, we analyze each option:

• Hydrocarbons are compounds of hydrogen and carbon, not protein monomers.
• Amino acids are the building blocks (monomers) of proteins, linked by peptide bonds to form polypeptide chains (proteins).
• Lipids are a different class of biomolecules, not protein monomers.
• Nucleotides are monomers of nucleic acids (DNA, RNA), not proteins.

So the correct monomer for proteins is amino acid.

Answer:

B. amino acid (assuming the option with "amino acid" is labeled as B; if the original labeling was different, adjust the identifier. But based on the options, the correct one is the "amino acid" option.)