major negative ion of the extracellular fluid is:
A)sodium.
B)potassium.
C)chloride.
D)calcium.

Question

Quizplus · Accepted Answer

Chloride (Cl-) is the major negative ion of the extracellular fluid, as it balances out the positively charged sodium (Na+) ions that are also in the extracellular fluid. Potassium (K+) is a major positive ion in the intracellular fluid, while calcium (Ca2+) primarily functions in bone development and muscle contraction. The major negative ion in extracellular fluid is chloride. Sodium is the major positive ion, potassium is the major intracellular positive ion, and calcium is an important ion for skeletal and cardiac muscle contraction, but not the major ion in extracellular fluid.

Major Negative Ion of the Extracellular Fluid Is