Muscle Contraction Is Triggered

question 2

Multiple Choice

Muscle contraction is triggered

• A)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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