Question

What is a difference between ATP and ADP molecules?

Answer 1

ATP has 3 phoshate groups while ADP only has 2

Answer 2

adp is converted into atp by adding one phosphate
atp has 3 adp has 2

Answer 3

ATP = Adenosine TRIphosphate (tri meaning 3)
ADP= Adenosine DIphosphate (di being 2)

for clarification of what the above said.

Answer 4

ok thanks :)