The most cation that found in extacellular fluid is

A cell with intracellular osmolarity of 280 mOsm/L is placed into three different containers varying in osmolarity. Which solution from the list would cause the cell to lose water and shrink?    280 mOsm/L    240 mOsm/L    340 mOsm/L    NONE of the above

The osmolarity of plasma is maintained at about 300 mOsM.  What would the osmolarity inside a red blood cell need to be to maintain osmotic equilibrium between the intracellular fluid and plasma?

Renal tubule cells in the kidney medulla are constantly exposed to high extracellular osmolirity. How do they maintain normal cell volume?

One of the symptoms of diabetes mellitus (sugar diabetes ) is extreme thirst . What brings about this feeling of thirst? Explain in terms of osmosis.

Equilibrium means all of the following except (which is false?) the concentration gradient for a solute is the same on either side of the membrane. molecules are in equal concentration and therefore no longer move across the membrane. there is no net movement molecules across a membrane. the water concentration is equal on either side of the membrane.

If two solutions separated by a semi-permeable membrane are isotonic, can you conclude that they are in chemical equilibrium?

Explain to me what factors influence permeability versus solubility?

Two solutions are separated by a semipermeable membrane that is permeable only to water.  The two solutions are: Solution A = 150 mM KCl Solution B = 150 mM Angiotensin (a 7 amino acid polypeptide) Which of the following would best explain the net movement in this situation? - water will move from the KCl side to Angiotensin side - water will move from Angiotensin side to KCl side - The Cl- ion will move to the angiotensin side until there is 75 mM Cl- on each side - Since Angiotensin is not an ion, it can move through the membrane - There is no net water movement as the concentrations are the same on both sides

Contrast the composition of the intracellular fluid with that of the extracellular fluid.