Diffusion And Osmosis Lab Report

diffusion and osmosis are both involved in the movement of molecules from different concentration high to low. However, diffusion is the movement of a solute starting from a high to low concentration while osmosis is the movement of water, the solvent, starting from high to low concentration across a semi permeable membrane.

The water potential for pure water in an open beaker is zero. The amount of solute and pressure potential are both zero, therefore making the total amount of water potential is zero.

An isotonic solution is defined as 2 solutions with the same osmotic concentration and pressure across a semi-permeable membrane. Red blood cells don’t undergo any swelling or shrinking in blood, because the concentration and the osmotic pressure

The bag particles both within the bag and outside will be an isotonic solution. The dialysis bag that contains a smaller concentration will experience a hypertonic concentration.

The blue bag experienced an isotonic solution, because of the equilibrium when it placed into the solution. The green bag was identified as a hypertonic, because of the less amount of molecules within the bag was less than those outside causing them to diffuse out of the bag. The other two bags, the yellow and red bags experienced a hypotonic solution because of the greater amount of molecules within the bag.

The yellow is the one, because it experienced a hypotonic solution. This shows that a great amount of water traversed the dialysis membrane inflowing into the tubing piece, increasing the volume.

It shows how the diffusion crosses from high to low concentrations along the concentration gradient. When no movement occurs, then there is no difference meaning there is an equilibrium present within the two solutions. With the yellow tubing, it was a hypotonic solution compared to beaker 2 causing the solution outside of the tubing to cross over the membrane inside the