Question

in the diagram below, what does part a of the atp molecule represent? * 1 point
options: ribose, adenine, arginine, phosphate groups

Explanation:

ATP (adenosine triphosphate) is composed of adenine, ribose (a pentose sugar), and three phosphate groups. In the structure, Part A is the adenine (a nitrogenous base), Part B is ribose, and Part C is the phosphate groups. Ribose is the pentose sugar (Part B), arginine is an amino acid not part of ATP, and phosphate groups are Part C. So Part A represents adenine.

Answer:

B. Adenine