Question

Related to the Muscular System Sliding Filament Theory, what molecule must bind to the cross bridge in order for it to disconnect with actin?

Answer 1

`"ATP"`

Explanation:

`"ATP"` plays a key role in allowing the detachment of the myosin-actin linkage.

Once detached, `"ATP"` is hydrolyzed into `"P"_"i" + "ADP"` which allows the myosin head to recock back into its high-energy position for a whole new cycle.