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Home Q & A Board Biology-Related Homework Help Cell Biology
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hmpark224 hmpark224
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6 years ago
During contraction
  a. cross bridges of muscle filaments are broken and reformed.
  b. ATP is released as a biproduct from cross-bridges.
  c. muscle cells use phosphate as their energy source.
  d. if there is an abundant supply of oxygen, glycogen depletion by glycolysis will lead to
  fatigue.
  e. calcium is linked to the myosin head.

Question 2

During muscle contractions
  a. the myofibrils lengthen.
  b. the actin and myosin filaments slide over each other.
  c. the actin filaments move away from the middle of the sarcomere during contraction and
  toward on relaxation.
  d. the muscle thins.
  e. ATP is produced.
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bhinzbhinz
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6 years ago
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hmpark224 Author
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#2
6 years ago
Thank you so much for providing this
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