Q. Which ion binds with troponin during muscle contraction?

A) $HCO_{3}^{-}$
B) $Ca^{2 +}$
C) $Cl^{-}$
D) $Na^{+}$
Explanation

$Ca^{2 +}$

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

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

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