Actually it is two: sodium and potassium because they and their regulators are so intertwined. But a very, very simple answer to your question, water always follows sodium.
The principal ions in the ECF are sodium, chloride, and bicarbonate. The ICF contains an abundance of potassium, magnesium, and phosphate ions, plus large numbers of negatively charged proteins.
Despite the differences in the concentration of specific substances, the osmotic concentrations of the ICF and ECF are identical. Osmosis eliminates minor differences in concentration almost at once, because most cell membranes are freely permeable to water.
Sodium is the dominant cation in the ECF (Extra Cellular Fluid)
Potassium is the dominant cation in the ICF (Inter Cellular Fluid).
Two general rules concerning sodium balance and potassium balance are worth noting:
The Most Common Problems with Electrolyte Balance Are Caused by an Imbalance between Gains and Losses of Sodium Ions.
Problems with Potassium Balance Are Less Common, but Significantly More Dangerous than Are Those Related to Sodium Balance.
sodium ions
Sodium.
Sodium is primarily stored outside the cell in the extracellular fluid. It is found in high concentrations in the fluid surrounding the cell and plays an essential role in maintaining cell function and regulating cellular processes such as osmosis and membrane potential.
cytoskeleton.
The most important force in maintaining the shape of the solar system is the force of gravity.
Maintaining healthy vision
Kidneys play biggest role in fluid balance. They are part of the excretory system.
sodium
potassium.
Sodium is primarily stored outside the cell in the extracellular fluid. It is found in high concentrations in the fluid surrounding the cell and plays an essential role in maintaining cell function and regulating cellular processes such as osmosis and membrane potential.
cytoskeleton.
A
The most important force in maintaining the shape of the solar system is the force of gravity.
Maintaining healthy vision
You go to the Leisure Towers and play bingo with grandma. If you win you go to the store and the place where it plays music. Get the CD and put it in.Put the volume on max. The teenagers hate classical music so they will go away. Then the storekeeper will give you the no freeze wiper fluid!
There is no direct relationship between how much mass an object has and it's volume. That is, mass plays no part in calculating the volume, and volume plays not part in determining mass. However, they are related by the equation to calculate the density. Density=Mass/Volume.
vitamin b6 but all of the vitamins plays an important role in maintaining cells and tissue. and most of all, include water in your diet.
Protein
Albumin