The compound that consists of ribose linked by an N-glycosidic bond to N-9 of adenine is:
A) a deoxyribonucleoside.
B) a purine nucleotide.
C) a pyrimidine nucleotide.
D) adenosine monophosphate.
E) adenosine.

Question

Quizplus · Accepted Answer

The compound described is adenosine, which consists of ribose linked to adenine. Adenosine monophosphate (AMP) also contains ribose and adenine, but it has a phosphate group attached to the ribose, not an N-glycosidic bond to adenine. A deoxyribonucleoside would have a deoxyribose sugar instead of a ribose sugar. A purine or pyrimidine nucleotide would have a nitrogenous base bonded to ribose or deoxyribose, but not specifically an N-glycosidic bond between ribose and adenine.

The Compound That Consists of Ribose Linked by an N-Glycosidic