Question

Maintenance of normal intracellular fluid volume depends largely on the intracellular concentration of _____ ions.

a. sulfide and bromide
b. hydride and iodide
c. oxide and nitride
d. potassium and phosphate

Answer 1

The answer is D. Extracellular, the main ions involve in osmoregulation in a cell are sodium and chloride. Intra-and extracellular distribution of K+ is influenced, for example, by Na+/K+-ATPase function, pH, Cellular catabolism and anabolism, Insulin and glucose. Parathormone and calcitriol are important in the homeostatic regulation of phosphates.