Question

State whether the following statements are true or false.
A drop in the force of contraction after prolonged stimulation is known as muscle fatigue.

• A. True
• B. False

Answer 1

The correct option is A True

• Myofibril activity is required for muscle contraction on the molecular level.
• When ATP binds to myosin, it separates from the actin of the myofibril, which causes a contraction.
  
• The muscle contraction cycle is triggered by calcium ions binding to the protein complex troponin, exposing the active-binding sites on the actin.
  
• ATP then binds to myosin, moving the myosin to its high-energy state, releasing the myosin head from the actin active site.
• When ATP is exhausted resulting in fatigue, lactic acid is produced

So, the correct option is 'True'.