Question

Match the channel type with the appropriate description.

Responsible for ion movement during the depolarization phase of the autorhythmic cell action potential.

A) voltage-gated sodium channels
B) potassium channels
C) funny channels
D) T-type calcium channels
E) L-type calcium channels

Answer 1

The L-type calcium channels are responsible for ion movement during the depolarization phase of the autorhythmic cell action potential, leading to further depolarization until the cell reaches approximately +15 mV.

Step-by-step explanation:

The appropriate description for the channel type responsible for ion movement during the depolarization phase of the autorhythmic cell action potential is the L-type calcium channels (E). These channels help with the further depolarization of the autorhythmic cell until it reaches approximately +15 mV, at which point the calcium ion channels close and potassium channels open, leading to repolarization.