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To demonstrate the principle of osmosis, the diffusion of water through a semi permeable membrane.
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Osmosis in Plant Cells Aim- to demonstrate the principle of osmosis, the diffusion of water through a semi permeable membrane. Apparatus: * 3 carrot slices * 3 raisins * 6 small labels * 6 thin plastic containers * 2x25 ml of distilled water (0 M ) * 2x25 ml of salty water ( 0.5 M ) * 2x25 ml of salt water ( 1 M ) * measuring cylinder * Balance Diagram: Method: 1) Distilled, salty, and salt water was measured using a measuring cylinder, and placed into 6 plastic containers. 2) The containers were labeled, and distributed in three pairs. 3) Each individual carrot/raisin was weighed. 4) The apparatus was then set as shown on the diagram. 5) The carrots and raisins were left over 40/45 minutes. 6) Each individual carrot/raisin was weighted once again. 7) Results were recorded and observations taken down. Results: Carrots Salt Concentration (M) Mass of carrot before (g) Mass of carrot after (g) 0 M 3.34 g 2.24 g 0.5 M 3,47g 2.55 g 1 M 3,67 g 3.67 g Observations...
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