Which bulk mineral is a major cation in body fluids and is essential for normal membrane function?
A) calcium
B) iron
C) sodium
D) chloride
E) phosphorus

Question

Quizplus · Accepted Answer

Sodium is a major cation in body fluids and is essential for normal membrane function. Calcium is an important mineral but it is not a major cation in body fluids. Iron is not a bulk mineral and is not essential for membrane function. Chloride is an anion and not a cation, and while important for maintaining fluid balance, it is not the major cation. Phosphorus is important for bone health and energy metabolism, but it is not the major cation in body fluids.

Which Bulk Mineral Is a Major Cation in Body Fluids