Cell+Transport


 * Summary- Moving cells in and out is required for many reasons. For example, raw material must come in and waste must come out. There are many different ways to move a small particle. For example, you can move it by Diffusion. This is when a small particle moves from an area of high concentration to low concentration, using no energy. There is also Osmosis, which is diffusion, but in water through a membrane. Moving small particles can also be done by passive transport. Passive transport is when something diffuses through a protein. Active transport requires energy. This is because it moves something from low concentration to high concentration. If a large particle needs to be transported, it uses two methods. Endocytosis is when a particle enters a cell. Exocytosis is when a particle leaves the cell.

Useful Links- Click [|here] for an absolutely easy, amazing, video on active transport, passive transport, exocytosis, and endocytosis!