Inside of cell as compared to outside have

Options

A. (a) more sodium
B. (b) more potassium
C. (c) more Na and K
D. (d) none

Answer

**Step-by-Step Solution:**

1. **Understanding the Cell Structure**:
- The cell is surrounded by a cell membrane, which separates the intracellular (inside the cell) and extracellular (outside the cell) environments.

2. **Identifying Ion Concentrations**:
- The sodium-potassium pump is a crucial mechanism that actively transports sodium (Na⁺) and potassium (K⁺) ions across the cell membrane.
- This pump moves 3 sodium ions out of the cell and 2 potassium ions into the cell.

3. **Comparing Ion Concentrations**:
- Due to the action of the sodium-potassium pump, there is a higher concentration of sodium ions in the extracellular region (outside the cell).
- Conversely, there is a higher concentration of potassium ions in the intracellular region (inside the cell).

4. **Conclusion**:
- Therefore, when comparing the inside of the cell to the outside, the inside of the cell has more potassium ions than sodium ions.
- The correct answer is that the inside of the cell has more potassium ions compared to the outside.

5. **Final Answer**:
- The correct option is (B) more potassium.

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