Virtual Lab – Osmosis – Tonicity in Red Blood Cells (Animal…

Virtual Lab – Osmosis – Tonicity in Red Blood Cells (Animal 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.

Virtual Lab – Microscopy – Animal Cells (Human Epidermal Cel…

Virtual Lab – Microscopy – Animal Cells (Human Epidermal Cells) Locating cheek cells is easier at a lower power objective because it provides a larger field of view, meaning you can see more of the sample at once. This makes it easier to scan a broader area and locate the cells.