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To investigate the factors that effect osmosis in living tissue.
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Biology Investigation by Yasir Al-Wakeel Aim: To investigate the factors that effect osmosis in living tissue. Planning: Introduction Essentially, osmosis is the diffusion of water across a selectively permeably membrane. Osmosis is one of the ways by which substances enter and exit cells. Other ways include diffusion, the Donnan effect1, solvent drag, filtration, endocytosis, exocytosis and active transport. All of these methods are necessary to provide cells with the conditions necessary for their survival. Osmosis helps cells absorb the water that they need and also pass it on from one cell to another. Osmosis occurs in the uptake of water in root hair cells, it also occurs in the return of water from tissues to blood capillaries and is constantly occurring during the opening and closing of the stomata in plant leaves. Factors that shall be tested: Bearing in mind that we have limited time and shall be conducting our...
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