A large percentage of the energy required by the nervous system is used by
A) sodium-potassium pumps.
B) calcium pumps.
C) anterograde transport within neurons.
D) retrograde transport within neurons.

Question

Quizplus · Accepted Answer

Sodium-potassium pumps are essential for maintaining the resting membrane potential of neurons, and they consume a significant amount of energy in the form of ATP. In fact, it is estimated that up to two-thirds of the energy used by the nervous system is used by these pumps. Calcium pumps, anterograde transport, and retrograde transport are also energy-dependent processes, but they do not account for as much energy expenditure as the sodium-potassium pumps.

A Large Percentage of the Energy Required by the Nervous