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NEET Biology question

BiologyLocomotion and MovementNEET

Relaxation of the muscle takes place due to I. Pumping of Ca2+ ions in sarcoplasmic reticulum. II. Presence of ATP. III. Conformational changes in troponin and masking the actin filament. Option containing correct statement is

Answer: (C)

Solution

Relaxation requires calcium ions to be actively pumped back into the sarcoplasmic reticulum (I) using the energy of ATP (II); as sarcoplasmic Ca2+ falls, troponin reverts to its original

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Question ID VK-117033