Question

Identify the correct statement related to calcium ions in muscle contraction

• A. Detaches the myosin head from the thin filament
• B. Binds to troponin to remove the mask of active sites of actin for myosin
• C. Activate the myosin ATPase by binding to it
• D. Prevents the formation of bonds between myosin and actin

Hint:

Calcium ions play a crucial role in muscle contraction by interacting with troponin and enabling myosin-actin interaction.

Answer 1

The Correct Option is B

Calcium ions bind to troponin in the muscle fibers, which causes a conformational change that removes the masking of active sites on actin. 
This allows myosin heads to bind to actin, initiating muscle contraction. Therefore, statement (2) is correct. 
Final Answer: 
Binds to troponin to remove the mask of active sites of actin for myosin.