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Factors affecting Osmosis in living tissue.
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| Submitted: Sun Dec 15 2002
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Emily Hatton MB July 2001 Factors affecting Osmosis in living tissue. Plan Plants need water to photosynthesise: Light Energy Carbon Dioxide + Water ( = Glucose + Oxygen Chlorophyll They take up water through their roots as these have a larger surface area. Water enters the roots from the soil by osmosis. Osmosis is the movement of water molecules through a partially permeable membrane. The water molecules move from a high concentration of water molecules (A weak solution) to a low concentration of water molecules (A strong solution). The water molecules enter the cells through the cell membrane (which controls what enters and exits the cell). In osmosis the cell membrane acts as the partially permeable membrane. Once the water molecules have entered the cell they make the cell wall swell up. They push against the cell wall until it reaches the cell's maximum capacity. Because the cell wall is so strong it stops the cell from bursting, we say...
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