Which of the Following is Most Similar in Structure to ATP

Question

Which of the following is most similar in structure to ATP?
A)a pentose sugar
B)a DNA nucleotide
C)an RNA nucleotide
D)an amino acid with three phosphate groups attached
E)a phospholipid

Accepted Answer

ATP is a nucleotide, composed of a nitrogenous base (adenine), a sugar (ribose), and three phosphate groups. Similarly, an RNA nucleotide also contains a nitrogenous base (adenine, guanine, cytosine or uracil), a ribose sugar, and a phosphate group. Pentose sugar, amino acids, and phospholipids do not have a similar structure to ATP. While DNA nucleotide also contains a nitrogenous base (adenine, guanine, cytosine or thymine), a sugar (deoxyribose), and a phosphate group, it lacks the third phosphate group, which is essential for ATP's energy transfer function.