Which of the following is NOT true of the latch state of smooth muscle contraction?
A. Myosin phosphatase removes the phosphate group from myosin.
B. It allows contraction without a large energy expenditure.
C. It explains why smooth muscle can sustain tension for long periods of time.
D. It occurs when the phosphate is removed while the cross-bridges are attached to actin.
E. It occurs when the phosphate is removed while the cross-bridges are not attached to actin.
Answer: E
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