You observe the structure and function of a muscle in the lab. You find that the cells requires tropomyosin displacement in order for myosin heads to bind actin, and that there is a great deal of electrical coupling between adjacent cells. Most likely you are observing _______________________.

Question

Quizplus · Accepted Answer

Cardiac muscle cells require tropomyosin displacement for myosin heads to bind to actin, similar to skeletal muscle. However, the presence of a great deal of electrical coupling between adjacent cells through gap junctions is a characteristic feature of cardiac muscle, facilitating synchronized contraction of heart muscle cells.

You Observe the Structure and Function of a Muscle in the Lab