Whereas sodium is found mainly in the extracellular fluid,most ________ is found in the intracellular fluid.
A) potassium
B) chloride
C) bicarbonate
D) iron

Question

Quizplus · Accepted Answer

Potassium is the major positively charged ion in the intracellular fluid (ICF), while sodium is the major positively charged ion in the extracellular fluid (ECF). Therefore, choice A is correct as it is found mainly in the intracellular fluid. Choices B, C, and D are incorrect because they are not primarily found in the intracellular fluid.

Whereas Sodium Is Found Mainly in the Extracellular Fluid,most ________