300 mM urea.

100 mM MgCl2.

300 mM glucose.

150 mM NaCl.

isosmotic but not isotonic to red blood cells

isotonic but osmolarity cannot be determined

neither isotonic nor isosmotic to red blood cells

isotonic but not isosmotic to red blood cells

both isotonic and isosmotic to red blood cells

Always hypotonic

Initially, hypotonic but then hypertonic as water moves into the RBC

Initially, hypotonic but then hypertonic as water moves out of the RBC

Initially, hypotonic but then isotonic as water moves into the RBC

Cant be calculated since Sucrose does not dissociate

Concentration of impermeable solute particles

Difference between compartments in the concentration only of impermeable solutes

Concentration of all solutes

Concentration of permeable solute particles

Difference between compartments in the concentration of all solutes

concentration of water molecules inside and outside the cell

concentration of protein molecules inside and outside the cell

the net thermal agitation (Brownian motion) of insoluble molecules inside the cell 

rate of molecular motion on either side of the cell membrane 

rate of movement of insoluble molecules inside the cell 

Hypertonic

Osmolarity

Hypotonic

Concentration

Iso-osmotic