0:00
A.
00:01
To determine if the 0 .15m cacl2 solution is hypotonic, isotonic or hypertonic relative to the osmolarity inside the cell, we need to compare the osmolarity of the solution of the osmolarity inside the cell.
00:23
Osmolarity is a measure of concentration of solute particles in the solution.
00:34
Inside the cell, the osmolarity is determined by the concentration of protein which is 0 .2m.
00:41
The 0 .5m cacl2 solution does not contain any protein.
00:50
So, its osmolarity is solely determined by the concentration of cacl2.
00:58
Since the concentration of cacl2 in the solution is lower than the concentration of proteins inside the cell, we can conclude that the 0 .15m cacl2 solution is hypotonic relative to the osmolarity inside the cell.
01:22
B.
01:23
When a cell is placed in a hypotonic solution, water will move into the cell throughout.
01:32
Osmosis, in this case, water will move from the 0 .15m cacl2 solution into the cell...
