Question

question 4
which of the following choices is correct regarding intracellular fluid?
a low concentration of k+, hco3, na+
b low concentration of ca++, na+, hco3
c high concentration of na+, cl, ca++
d ion concentrations are equal in intracellular and extracellular fluid

Explanation:

Intracellular fluid has a low concentration of \(Ca^{++}\), \(Na^{+}\), \(HCO_{3}^{-}\). Intracellular fluid is rich in \(K^{+}\) and phosphate ions. Extracellular fluid has high concentrations of \(Na^{+}\), \(Cl^{-}\), \(Ca^{++}\), and \(HCO_{3}^{-}\). So option A is wrong as intracellular fluid has high \(K^{+}\). Option C is wrong as intracellular fluid has low \(Na^{+}\), \(Cl^{-}\), \(Ca^{++}\). Option D is wrong as ion concentrations are not equal in intracellular and extracellular fluid.

Answer:

B. Low concentration of \(Ca^{++}\), \(Na^{+}\), \(HCO_{3}^{-}\)