Which of the following statements is true? Choose one: Na + is the most plentiful positively charged ion outside the cell, while K + is the most plentiful inside. K + and Na + are both excluded from cells. K + and Na + are present in the same concentration on both sides of the plasma membrane. K + and Na + are both maintained at high concentrations inside the cell compared to out. K + is the most plentiful positively charged ion outside the cell, while Na + is the most plentiful inside.

Question

Chemistry

Guillermo Wheeler

9 August, 22:54

Which of the following statements is true? Choose one: Na + is the most plentiful positively charged ion outside the cell, while K + is the most plentiful inside. K + and Na + are both excluded from cells. K + and Na + are present in the same concentration on both sides of the plasma membrane. K + and Na + are both maintained at high concentrations inside the cell compared to out. K + is the most plentiful positively charged ion outside the cell, while Na + is the most plentiful inside.

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Answers (1)

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Andrea Cain · Answer 1

Na + is the most plentiful positively charged ion outside the cell, while K + is the most plentiful inside.

Explanation:

Sodium ion and potassium ion play an important role in cellular metabolism. Na + ion present in extracellular fluid while K + ion is present in intracellular fluid.

Sodium ions are necessary for:

generation of nerve impulse

Heart activities

electrolyte balance

High or low concentration of sodium affects health.

Potassium ions are necessary for:

fluid and electrolyte balance

Na + ion present in extracellular fluid while K + ion is present in intracellular fluid.

Therefore, Na + ion present in extracellular fluid while K + ion is present in intracellular fluid.