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Author Question: Physical evidence that supports the sliding filament theory of muscle contraction includes A) ... (Read 45 times)

sabina

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on: Feb 28, 2019
Physical evidence that supports the sliding filament theory of muscle contraction includes
 A) constant distance between Z lines during contraction.
  B) decreased width of the H band during contraction.
  C) increased width of the I band during contraction.
  D) decreased width of the A band during contraction.
  E) the I band + H band distance is constant during contraction.

Question 2

When calcium ion binds to troponin,
 A) tropomyosin rolls away from the active site.
  B) active sites on the myosin are exposed.
  C) actin heads will bind to myosin.
  D) muscle relaxation occurs.
  E) myosin shortens.


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bimper21

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Reply #1 on: Feb 28, 2019
Answer to Question 1

B

Answer to Question 2

A


sabina

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Reply #2 on: Feb 28, 2019
TY


bimper21

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Reply #3 on: Feb 28, 2019
You're welcome


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