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Which ion is found in the highest concentration inside cells?

1. Sodium (Na+)
2. Calcium (Ca2+)
3. Potassium (K+)
4. Magnesium (Mg2+)

Correct answer: Potassium (K+)

Solution

Potassium (K+) is the most abundant intracellular cation, as it plays a crucial role in maintaining cell membrane potential and various cellular processes.

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