Which of the Following is Not a Monomer/polymer Pairing

Question

Which of the following is not a monomer/polymer pairing?
A) monosaccharide/polysaccharide
B) amino acid/protein
C) triglyceride/phospholipid bilayer
D) deoxyribonucleotide/DNA
E) ribonucleotide/RNA

Accepted Answer

Triglycerides and phospholipids are both lipids, but they are not monomer/polymer pairings. Triglycerides are composed of three fatty acids attached to a glycerol molecule, while phospholipids have two fatty acids attached to a glycerol molecule, with a phosphate group and another polar group on the third carbon.