NEET · Biology · STD 11 - 17. Locomotion and movement

Calcium is important in skeletal muscle contraction because it

A Prevents the formation of bonds between the myosin cross bridge and the actin filament.
B Binds to troponin to remove the masking of active sites on actin myosin
C Detaches the myosin head from the actin filament.
D Activates the myosin \(ATPase\) by Binding to it.

Verified Solution

Answer & Solution

Correct Answer

(B) Binds to troponin to remove the masking of active sites on actin myosin

Step-by-step Solution

Detailed explanation

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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	List - I		List - II
A.	Centromere	(i)	Mitochondrion
B.	Cilium	(ii)	Cell division
C.	Cristae	(iii)	Cell movement
D.	Cell membrane	(iv)	Phospholipid Bilayer