What is the structural difference between ATP and ADP Which is the "charged" version of the battery
a. ATP has one phosphate group; ADP has two; ATP is the charged version.
b. ATP has two phosphate groups; ADP has one; ADP is the charged version.
c. ATP has three phosphate groups; ADP has two; ATP is the charged version.
d. ATP has two phosphate groups; ADP has three; ADP is the charged version.