Question

Each myosin head contains a binding site for _____ and a binding site for _____.

a) tubulin; GTP
b) another myosin molecule; ATP
c) kinesin; GTP
d) actin; ATP
e) none of the rest

Answer 1

Each myosin head contains a binding site for actin and a binding site for ATP. This allows the myosin head to attach to actin and undergo a conformational change to generate muscle contraction. ATP binding causes the myosin head to detach from actin and prepare for further movement.

Step-by-step explanation:

Each myosin head contains a binding site for actin and a binding site for ATP. Each myosin head contains a binding site for actin and a binding site for ATP. This allows the myosin head to attach to actin and undergo a conformational change to generate muscle contraction. ATP binding causes the myosin head to detach from actin and prepare for further movement.

When the myosin head attaches to actin, it undergoes a conformational change which allows it to pull the actin filament and perform muscle contraction. The binding of ATP causes the myosin head to detach from actin, allowing for further movement.