Which of the following step occurs immediately after binding of Ca2 with troponin molecule during muscle contraction.?

Biology Mcqs
BILAL KHATTAK0

A. Binding sites of actin get attached to the myosin head.
B. Troponin uncovers the actin binding sites. 
C. Tropomyosin gets removed from the binding sites of actin filaments. 
D. Ca2 goes back inside sarcoplasmic reticulum.

Related Mcqs:

  1. During muscle contraction:
  2. Cross bridges are found on:
  3. The contraction of of a muscle is caused by:
  4. Troponin subunit Tpc inhibits actomyosin formation by:
  5. Which of these processes mark the beginning of muscular contraction:
  6. The most important function of troponin is___________??
  7. Which of these structures over myosin help in contraction of the muscle fibre:
  8. During relaxation the calcium ions are:
  9. The fertilization in mammalian ovum occurs:
  10. Actin has a strong affinity to myosin and readily combines with it to form actomyosin but this is inhibited by:

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