Virtuаl Lаb - Osmоsis - Tоnicity in Red Blоod Cells (Animаl Cells) In an isotonic environment blood cells maintain their normal, biconcave disc shape. This is due to the loss of water from the cells into the surrounding solution, causing the cells to become smaller and more irregular in shape. In a hypertonic environment blood cells undergo crenation, where they appear shrunken and spiky. There is no net movement of water into or out of the cells, so they retain their usual structure.
Virtuаl Lаb - Diffusiоn Acrоss а Selective Permeable Membrane Hоw do we test for the presence of starch using iodine (IKI)?