Multiple choice

ADP can be joined with a phosphate group by using energy to form ____.

  1. NADP

  2. ATP

  3. NADPH

  4. all the above

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

ADP (adenosine diphosphate) combines with a phosphate group using energy (typically from cellular respiration) to form ATP (adenosine triphosphate), the cell's primary energy currency. This reversible reaction stores and releases biochemical energy.