× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
L
4
d
4
3
k
3
k
3
j
3
k
3
b
3
f
3
b
3
d
3
h
3
New Topic  
Htown713 Htown713
wrote...
6 years ago
The principal role of calcium in skeletal muscle contraction is to
 a. participate in the propagation of an action potential along the surface of the muscle fiber.
  b. bind troponin, which in turn permits tropomyosin to uncover the cross-bridge binding site on the thin filament.
  c. bind tropomyosin, which in turn permits troponin to uncover the cross-bridge binding site on the thin filament.
  d. activate a calcium-calmodulin-dependent protein kinase, which in turn phosphorylates and activates myosin.
Read 58 times
1 Reply

Related Topics

Replies
ernurse Author
wrote...
6 years ago
B
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  1035 People Browsing
Related Images
  
 85
  
 1923
  
 1039
Your Opinion
What's your favorite funny biology word?
Votes: 336