StreakPeaked· Practice

ExamsNEETChemistry

The dominant cation in the blood plasma (extracellular fluid) is

  1. potassium
  2. calcium
  3. magnesium
  4. sodium

Correct answer: sodium

Solution

Sodium is the primary cation in extracellular fluid, including blood plasma, as it plays a key role in maintaining osmotic balance and nerve function.

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