MDCAT Biology MCQ #797

A patient with mitochondrial disease experiences severe muscle weakness. This is due to a failure to synthesize a molecule whose energy is stored in:

MDCAT Biology MCQ #797

  1. Question 1

    Q1. A patient with mitochondrial disease experiences severe muscle weakness. This is due to a failure to synthesize a molecule whose energy is stored in:

    • A) Adenosine
    • B) Ribose sugar
    • C) Phosphate groups
    • D) Nitrogenous base

    Answer: Phosphate groups

    Explanation: ATP contains three phosphate groups; the terminal pyrophosphate bonds release 7.3 kcal/mol. Adenosine is the nucleoside part, not the energy source.