Physiology The energy for muscle contraction is supplied by the enzymatic hydrolysis of ATP by ATPase present in: A Heavy meromyosin B Light meromyosin C Tropomyosin D Troponin 💡 Explanation The energy for muscle contraction is supplied by the enzymatic hydrolysis of ATP by ATPase present in: ✓ Correct Answer: A. Heavy meromyosin