Question

160. Arrange the given steps of muscle contraction
in the series of events from first to last.
i) Binding of Ca** with troponin
ii) Pulling of actin filaments towards the
centre of ‘A’-band.
iii) Removal of masking of active sites for
myosin.
iv) Binding of myosin heads with exposed
active sites.
v) «Z'-line attached to actin filaments are
pulled towards thereby causing shortening
of sarcomere.
1) i iv — i — i — v
2)i - jji iv > 1. V
3) i i i — iv →v
4) iii — i — i — iv →​

Answer 1

Answer:

2) i - iii - iv - ii - v : is the correct sequence