When troponin binds calcium,
A) it changes conformation,twisting tropomyosin and exposing the actin-myosin binding site.
B) ion channels open and sodium rushes into the muscle cells.
C) it allows tropomyosin to bind actin.
D) it changes conformation,exposing the ATP binding site and allowing the actin-myosin bond to break.
E) ATP binds to the myosin head,allowing myosin to attach to actin.
Correct Answer:
Verified
Q6: Refer to the diagram of a sarcomere
Q7: How does tropomyosin control muscle contraction?
A) It
Q7: What is the role of the sarcoplasmic
Q8: An individual sarcomere unit consists primarily of
A)
Q9: Which statement about myosin is true?
A) A
Q10: The role of Ca2+ in the control
Q12: Refer to the diagram below.Based on the
Q13: Refer to the figure below.Which statement accurately
Q14: Which statement about actin is true?
A) Two
Q16: When animals die,muscles stiffen in rigor mortis
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