AP BIOLOGY

Detailed explanation-1: -Recall that the monomer units for building the nucleic acids, DNA and RNA, are the nucleotide bases, whereas the monomers for proteins are amino acids, for carbohydrates are sugar residues, and for lipids are fatty acids or acetyl groups.

Detailed explanation-2: -Nucleotides are low-molecular-weight compounds comprising a nitrogenous base, a sugar moiety and one to three phosphate groups and belonging to the non-protein nitrogen fraction of milk.

Detailed explanation-3: -The monomers of DNA are called nucleotides. Nucleotides have three components: a base, a sugar (deoxyribose) and a phosphate residue. The four bases are adenine (A), cytosine (C), guanine (G) and thymine (T).

Detailed explanation-4: -For example, proteins are composed of monomers called amino acids.

Detailed explanation-5: -From the definition of natural polymers, Proteins are natural polymers. Proteins are polymers of amino acids. Each amino acid contains a peptide bond −CO−NH2− variable with the R group. So the given statement is True.