Multiple choice

ATP contains _______ phosphate molecule/s in its molecule.

  1. 1

  2. 2

  3. 3

  4. 4
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

ATP (Adenosine Triphosphate) contains 3 phosphate molecules in its structure: adenine-ribose-phosphate-phosphate-phosphate. The 'Tri' in Triphosphate means 'three'. Breaking the bond to the third (terminal) phosphate releases energy for cellular work. ADP (Adenosine Diphosphate) has only 2 phosphates.

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