Question

______ions are necessary to activate the binding sites on the actin filaments. The molecule ____ is required each time the myosin head detaches from one site and reattaches to another. Fill in the blanks please!

Answer 1

Calcium

ATP

Step-by-step explanation:

Took the test on edge

Answer 2

Calcium ions are necessary to activate the binding sites on the actin filaments. The molecule ATP is required each time the myosin head detaches from one site and reattaches to another.