Author Question: When the neuron is at rest, what is primarily responsible for moving potassium ions OUT of the cell? ... (Read 47 times)

Anajune7 · **on:** Jun 22, 2018

When the neuron is at rest, what is primarily responsible for moving potassium ions OUT of the cell?

a. a concentration gradient
b. an electrical gradient
c. both a concentration gradient and an electrical gradient
d. the sodium-potassium pump

Question 2

Poikilothermic organisms have body temperatures that ____.

a. remain relatively constant no matter the change in the external environment
b. are the same as the temperatures of their environments
c. are nearly constant, although the brain temperature varies
d. allow them to survive in very warm climates only