MDCAT Biology MCQ #932

During cellular respiration, the terminal phosphate bond of an ATP molecule is hydrolyzed. The energy released per mole in this reaction is:

MDCAT Biology MCQ #932

  1. Question 1

    Q1. During cellular respiration, the terminal phosphate bond of an ATP molecule is hydrolyzed. The energy released per mole in this reaction is:

    • A) 2.1 kcal/mol
    • B) 3.4 kcal/mol
    • C) 7.3 kcal/mol
    • D) 10.5 kcal/mol

    Answer: 7.3 kcal/mol

    Explanation: Breaking one terminal phosphate bond in ATP releases 7.3 kcal/mol; 3.4 kcal is the energy for lower-energy phosphate esters.