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Question
Which of the following ions are necessary in the chemical events of the muscle contraction?
Which of the following ions are necessary in the chemical events of the muscle contraction?
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Solution
The correct option is C Calcium and Magnesium
For the contraction of muscles, a stimulus is required. Impulse is generated when an action potential is initiated. The muscles then shorten in length and trigger the sarcoplasmic reticulum to release calcium ions into the interior of the muscle and they bind to troponin, thus causing tropomyosin to shift from the face of actin filaments, to which the myosin head need to bind to produce a contraction. Thus, Calcium plays important role in muscle contraction. Magnesium plays important role in regulation.So, the correct answer is option C.
For the contraction of muscles, a stimulus is required. Impulse is generated when an action potential is initiated. The muscles then shorten in length and trigger the sarcoplasmic reticulum to release calcium ions into the interior of the muscle and they bind to troponin, thus causing tropomyosin to shift from the face of actin filaments, to which the myosin head need to bind to produce a contraction. Thus, Calcium plays important role in muscle contraction. Magnesium plays important role in regulation.
So, the correct answer is option C.
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