ANATOMY

Detailed explanation-1: -Dialysis is the separation of smaller molecules from larger molecules in solution by selective diffusion through a semipermeable membrane. Dialysis tubing will be used in this laboratory to simulate a cell membrane. It is made of selectively permeable cellulose tubing perforated with microscopic pores.

Detailed explanation-2: -Osmosis is a type of simple diffusion in which water molecules diffuse through a selectively permeable membrane from areas of high water concentration to areas of lower water concentration.

Detailed explanation-3: -Diffusion is defined as the movement of solute from an area of high concentration to an area of lower concentration across a semipermeable membrane. Movement continues until equilibrium is achieved.

Detailed explanation-4: -The blood and dialysis fluid are separated only by a thin wall, called a semipermeable membrane. This membrane allows particles that the body needs to get rid of to pass through it, but doesn’t let important parts of the blood (e.g. blood cells) pass through.

Detailed explanation-5: -The dialysis tubing is selectively permeable because substances such as water, glucose, and iodine were able to pass through the tubing but the starch molecule was too large to pass.