Which Is a TRUE Statement About Smooth Muscle

question 54

Multiple Choice

Which is a TRUE statement about smooth muscle?

• A)Smooth muscle is striated.
• B)Smooth muscle does not have thick and thin filaments.
• C)Smooth muscle does not use troponin-tropomyosin to regulate cross-bridge activity.
• D)Changes in cytosolic calcium do not regulate cross-bridge activity in smooth muscle.
• E)The myosin in smooth muscle requires phosphorylation before it can bind to ATP.

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