Extracellular fluid is rich in A) K⁺,with small amounts of Na⁺and Cl^-. B) K⁺and Cl^-,with very small amounts of Na⁺. C) Cl^-,with very small amounts of K⁺and Na⁺. D) Na⁺and Cl^-,with small amounts of K⁺.

Question

Quizplus · Accepted Answer

Extracellular fluid is predominantly composed of sodium ions (Na+) and chloride ions (Cl-), with small amounts of potassium ions (K+) and other ions. Therefore, option D, which includes Na+ and Cl- as the main components, and K+ as a minor component, is the best choice. Options A, B, and C are not correct, as they either do not include the main components or include them in incorrect proportions.

Extracellular Fluid Is Rich in