Which ion has the greatest concentration in the cytoplasm?
A) calcium ion
B) chloride
C) phosphate
D) potassium ion

Question

Quizplus · Accepted Answer

Potassium ions (K+) have the greatest concentration in the cytoplasm of cells, typically ranging from 140 to 160 millimolar (mM). This is due to the fact that K+ channels are present in the cell membrane and actively pump K+ into the cell, while also preventing other ions from entering. Other ions, such as calcium, chloride, and phosphate, are also present in the cytoplasm, but at much lower concentrations compared to K+.

Which Ion Has the Greatest Concentration in the Cytoplasm