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1 April, 08:53

Muscle contraction is triggeredA) in response to an increase in the cytoplasmic Ca2+concentration. B) in response to a decrease in the cytoplasmic Ca2+concentration. C) in response to an increase in the cytoplasmic cAMP concentration. D) in response to a decrease in the cytoplasmic cAMP concentration. E) in response to an increase in the cytoplasmic titin concentration.

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  1. 1 April, 09:07
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    A) in response to an increase in the cytoplasmic Ca2+concentration.

    Explanation:

    Muscle contraction occurs in response to an increase in the cytoplasmic Ca2 + concentration.

    This process occurs with the shortening of the sarcomeres resulting in a result, the actin filaments react with myosin, generating actomyosin. During this reaction, it is necessary to increase the cytoplasmic concentration of Ca + and ATP. In this, myosin will break down ATP, releasing energy so that the muscle can contract.
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