Card 19 / 34: What is step 2 of muscle contraction?
A)
Resting fiber; cross bridge is not attached to actin
B)
A new ATP binds to myosin head, allowing it to release from actin.
C)
Pi is released, causing conformational change in myosin.
D)
Cross bridge binds to actin.
E)
Synaptic vesicles fuse with cell membrane.
Answer:
D) Cross bridge binds to actin.
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Nick Swain |
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