egg osmosis - Egg Osmosis 1 Name_ Egg Osmosis Goggles must...

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M. Poarch -2001 http://science-class.net Name______________________________ Egg Osmosis Problem: To observe osmosis in a cell Background Information: Osmosis is the diffusion of water across a selectively permeable membrane. This means that water can go through membranes from areas where there are a lot of water molecules to areas where there are not so many water molecules. To perform their functions, cells must keep an internal steady state even when the environment outside of the cell is changing. This steady state is called homeostasis . Homeostasis maintained in part by controlling the movement of materials into and out of the cell. To achieve this control, cells are surrounded by a membrane that can tell different substances apart, and can slow down or stop the movement of some substances while allowing others to pass through freely. Because not all substances can go through the cell membrane equally well, the membrane is said to be differentially, or selectively permeable . Goggles must be worn during this activity. Do all pouring over the trays – keep your
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egg osmosis - Egg Osmosis 1 Name_ Egg Osmosis Goggles must...

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