Card 22 / 34: What is step 5 of muscle contraction?
A)
A new ATP binds to myosin head, allowing it to release from actin.
B)
Power stroke causes filaments to slide; ADP is released.
C)
ATP is hydrolyzed, causing cross bridge to return to its original orientation.
D)
Resting fiber; cross bridge is not attached to actin.
E)
Cross bridge binds to actin.
Answer:
A) A new ATP binds to myosin head, allowing it to release from actin.
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Nick Swain |
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