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Osmosis

Osmosis in Potato Cells

Aim

In this investigation my aim is to explore the effect of varying the concentration of a certain sugar solution on the amount of osmotic movement there is between the solution and the size of the potato piece used.

Hypothesis

Osmosis is defined as the passage of water molecules moving from a region of low concentrated solution into a region of highly concentrated solution. This course of action takes part through a partially permeable membrane, such as a cell membrane that lets minor molecules such as water through but does not allow bigger molecules to pass through. This type of diffusion and is a passive process, which does not require any input of energy. In this case, the tiny holes in the membrane of the potatoes will allow the water molecules to pass through in and out of the solution and potato, depending on the concentration gradient of the two substances. Water molecules voyage in both directions but there is a net movement of molecules ...

Posted by: Alyscia Yellowman

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