Question

Select the option among the following that represents the chronological order w.r.t. stages in cross bridge formation and its breaking during muscle contraction.
(a) Hydrolysis of ATP by myosin head
(b) Cross bridge formation
(c) Binding of new ATP with myosin head
(d) Sliding of actin filament over myosin
(e) Cross bridge breaks

• A. $\left(e\right)\to \left(c\right)\to \left(b\right)\to \left(d\right)\to \left(a\right)$
• B. $\left(a\right)\to \left(b\right)\to \left(d\right)\to \left(c\right)\to \left(e\right)$
• C. $\left(c\right)\to \left(b\right)\to \left(d\right)\to \left(a\right)\to \left(e\right)$
• D. $\left(b\right)\to \left(d\right)\to \left(a\right)\to \left(c\right)\to \left(e\right)$

Answer 1

The correct option is B $\left(a\right)\to \left(b\right)\to \left(d\right)\to \left(c\right)\to \left(e\right)$

Answer (4)
Hydrolysis of ATP by myosin head, Cross bridge formation. Sliding of actin filament, Binding of new ATP with myosin head, Cross bridge breaks.