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Excitation Contraction Coupling

WHICH OF THE ...

Question

WHICH OF THE FOLLOWING ION IS NECESSARY FOR THE CONTRACTION OF A MUSCLES & NERVE IMPULSE TRANSMISSION 1] Na+ 2] K+ 3] CA++ & Mg++ IONS 4] NONE OF THESE

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Solution

Option 1 is right.
Sodium is involved in the transmission of nerve impulses and muscle contraction.

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Q. Assertion : Na and K ions are necessary for muscle contraction
Reason : Na and K concentration changes across the muscle cell membrane resulting in development of potential difference

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Excitation Contraction Coupling

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