Final answer:
DNA is named after the sugar component called deoxyribose.
Step-by-step explanation:
The part of the molecule for which deoxyribonucleic acid (DNA) is named is deoxyribose, which is a type of sugar. DNA is made up of nucleotides, and each nucleotide consists of a deoxyribose sugar, a phosphate group, and a nitrogenous base. The deoxyribose sugar gives DNA its name and helps form the backbone of the DNA molecule.