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RICHDANGER123 RICHDANGER123
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6 years ago
Which of the following happens during contraction of a skeletal muscle?
  1.The myosin strands get shorter.
  2.The concentration of Ca2+ in the cytosol of the muscle fiber decreases.
  3.Troponin attaches to myosin.
  4.The z lines get closer to each other, shortening the sarcomere.
 
Question 2

Skeletal muscle cells are multinucleate, meaning that each cell contains many nuclei.
  1.True
  2.False
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tobeddstobedds
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