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Home Q & A Board Biology-Related Homework Help General Biology
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JNASTY123 JNASTY123
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6 years ago
During muscle contractions,
  a. the sarcomeres shorten.
  b. the actin filaments slide over the myosin
  filaments.
  c. the actin filaments move toward the middle of
  the sarcomere during contraction and away on
  relaxation.
  d. the muscle fibers thicken.
  e. all of these occur.

Question 2

When a sarcomere contracts,
  a. only the actin filaments shorten.
  b. only the myosin filaments shorten.
  c. both actin and myosin shorten.
  d. neither actin nor myosin shortens.
  e. both actin and myosin depolymerize.
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svanschaiksvanschaik
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6 years ago
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JNASTY123 Author
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#2
6 years ago
Thank you Slight Smile
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#3
6 years ago
Pleasure
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