Electrochemical gradient is the driving force for ion movement across the membra

Question

Electrochemical gradient is the driving force for ion movement across the membrane Extracellular fluid It is composed of the difference in concentration plus the difference in electrical charge. Cytoplasnm 1. What is the chemical driving force (in or out?) for Nat2 2. Because the inside of the cell is negative, what is electrical driving force for Na+? 3. What is the net driving force for Na+2 . What is the chemical driving force for K+2 5. Electrical driving force for K+? 6. Net driving force for K+2 K+ NaNa+ Cl- Cl Strong or weak? discuss

Explanation / Answer

1). The extracellular concentration of sodium is approximately 135 mEq/L (milli equivalents per liter), while that of the potassium is about 3.6 to 5.0 mEq/L. So, the sodium tend to move into the cell (towards the cytoplasm). The driving force for this movement is, concentration gradient.

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