Card 21 / 34: What is step 4 of muscle contraction?
A)
A new ATP binds to myosin head, allowing it to release from actin.
B)
Synaptic vesicles fuse with membrane.
C)
Pi is released, causing conformational change in myosin.
D)
Power stoke causes filaments to slide; ADP is released.
E)
Impulse travels T-tubules and SR.
Answer:
D) Power stoke causes filaments to slide; ADP is released.
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Nick Swain |
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