Q. Ions that must be present for binding the cross bridges is

A) $Na^{+}$
B) $Ca^{2 +}$
C) $K^{+}$
D) $Mg^{+}$
Explanation

Actinomyosin complex is formed when actin and myosin proteins are combined in the presence of ATP and $Ca^{2 +}$ions and when these ions removed, the actin and myosin dissociate. This process takes place during muscle contraction.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.