Card 23 / 34: What is step 6 of muscle contraction?
A)
A new ATP binds to myosin head, allowing it to release from actin.
B)
Resting fiber; cross bridge is not attached to actin.
C)
ATP is hydrolyzed, causing cross bridge to return to its original orientation.
D)
Pi is released, causing conformational change in myosin.
E)
Calcium ions rush in and react with synaptic vesicles.
Answer:
C) ATP is hydrolyzed, causing cross bridge to return to its original orientation.
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Nick Swain |
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