DNA is composed of repeating structural units called ______. _______ is the five-carbon sugar found in DNA. The three components of a nucleotide are labeled. Part A is a phosphate with 1 double bond and single bonds to 3 oxygen molecules. Part B is a sugar with 5 carbon molecules. Part D is made up of nitrogen molecules.
a) Nucleotides; Deoxyribose
b) Amino acids; Glucose
c) Phospholipids; Ribose
d) Proteins; Fructose