Q. During muscle contraction, ATP provides energy for
A) Cross bridge detachment
B) Building up action potential
C) Releasing $Ca^{2 +}$ from sarcoplasmic reticulum
D) Cross-bridge attachment of myosin to actin
Explanation
Cross-bridge ditachment. When ATP binds to myosin filament there is a detachment of myosin and actin filament. Due to detachment, the sliding (contraction) takes place and the hydrolysis of ATP to ADP takes place. In that step again, the cross bridge formation between actin and myosin takes place
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.