Muscle performance depends on a supply of

Question

Quizplus · Accepted Answer

ATP (adenosine triphosphate) is the primary source of energy for muscle contractions. Without a sufficient supply of ATP, muscles cannot contract and perform work.

Answer: C 
 Oxygen is also crucial for muscle performance as it facilitates the process of cellular respiration, which generates ATP. Without adequate amounts of oxygen, cells switch to anaerobic metabolism, which can result in fatigue and decreased muscle performance over time.

Answer: D 
 Calcium ions play a critical role in muscle contraction by triggering the release of myosin and actin filaments, which generate force and movement. Without calcium ions, muscles cannot contract effectively.

Therefore, the best choices are A, C, and D.

Muscle Performance Depends on a Supply of