Which of the Following Is True Concerning Transport Proteins in the Neuron

Multiple Choice

Which of the following is true concerning transport proteins in the neuron membrane?

A) Only sodium is actively transported.
B) Only potassium is actively transported.
C) Passive transporters with open channels prevent ions from leaking across the membrane.
D) Active transporters move ions against their concentration gradients.
E) It takes energy to move ions through passive transporters.