Which of the following compounds binds with the calcium that enters the cell during smooth muscle excitation?

Question

Quizplus · Accepted Answer

Calmodulin is a calcium-binding protein that is activated by calcium influx into the cell. It then binds with and activates the enzyme myosin kinase, which leads to smooth muscle contraction. Troponin is found in skeletal and cardiac muscle and is involved in regulating muscle contraction. Myosin is a contractile protein found in both smooth and skeletal muscle but does not bind with calcium.

Which of the Following Compounds Binds with the Calcium That