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Read the following statements and choose the correct option.
Statement A: Cross bridge breaks when new ATP binds to myosin head after release of ADP and iP.
Statement B: During muscle relaxation calcium ions are passively pumped back to the sarcoplasmic reticulum resulting in the unmasking of actin filaments.

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Only statement A is correct

Only statement B is correct

Both A and B statements are correct

Both A and B statements are incorrect

answer is A.

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Detailed Solution

During muscle relaxation calcium ions are actively pumped back to the sarcoplasmic reticulum resulting in the masking of actin filaments.

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