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A: Ca2+ plays an important role in muscle contraction.
R: Ca2+ combines with troponin chain, displacing tropomyosin allowing the myosin head part to combine with actin to form actomyosin complex.
  • a)
    If both Assertion & Reason are true, and the reason is the correct explanation of the assertion.
  • b)
    If both Assertion & Reason are true, but the reason is not the correct explanation of the assertion.
  • c)
    If the Assertion is a true statement, but Reason is false.
  • d)
    If both Assertion and Reason are false statements.
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
A: Ca2+ plays an important role in muscle contraction.R: Ca2+ combines...
Ca2+ ions play an important role in muscle contraction by creating interactions between the proteins, myosin and actin. The Ca2+ ions bind to the C component of the actin filament, which exposes the binding site for the myosin head to bind to in order to stimulate a muscle contraction.
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A: Ca2+ plays an important role in muscle contraction.R: Ca2+ combines with troponin chain, displacing tropomyosin allowing the myosin head part to combine with actin to form actomyosin complex.a)If both Assertion & Reason are true, and the reason is the correct explanation of the assertion.b)If both Assertion & Reason are true, but the reason is not the correct explanation of the assertion.c)If the Assertion is a true statement, but Reason is false.d)If both Assertion and Reason are false statements.Correct answer is option 'A'. Can you explain this answer?
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