BIOLOGY INTERNAL ASSESSMENT STANDARD LEVEL OSMOSIS - Essay Example

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i.            Aim To investigate the change in the mass of potato strips as a result of the process of osmosis in potato strips over varying periods of time. ii.      Research Question How ...........

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BIOLOGY INTERNAL ASSESSMENT STANDARD LEVEL OSMOSIS

i.            Aim

To investigate the change in the mass of potato strips as a result of the process of osmosis in potato strips over varying periods of time.

ii.      Research Question

How does time affect the mass of potato strips (measured in grams) when immersed in distilled water (H20) over a period of five hours at one hour intervals: 1 hour, 2 hours, 3 hours, 4 hours, and 5 hours?

iii.      Introduction

Osmosis is the passive movement of water molecules from a region of high water concentration to a region of lower water concentration (lower solute concentration to higher solute concentration), across a partially permeable membrane. The plasma membrane is selectively permeable, and it controls the movement of substances in and out of cells, but water is able to move freely in and out of the cell, allowing osmosis to occurPotato cells have selectively permeable membranes and therefore can be used to show the

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i.            Aim To investigate the change in the mass of potato strips as a result of the process of osmosis in potato strips over varying periods of time. ii.      Research Question How does time affect the mass of potato strips (measured in grams) when immersed in distilled water (H20) over a period...
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