Which trace element is essential for the proper functioning of the sodium-potassium pump in cells?

A Zinc ✓
B Copper
C Selenium
D Rubidium

Explanation

Zinc is a crucial component of the sodium-potassium pump, which helps maintain cellular membrane potential and regulate fluid balance.

Source

Guyton and Hall Textbook of Medical Physiology
Minerals and Trace Elements Cellular Physiology Ion Transport and Pumping Hard MEDICAL Confidence: medium