In this experiment I will be testing the effect of temperature on the plasma membrane of a beetroot. I will do this by measuring the percentage light transmission using a spectrophotometer. Once I have obtained my results, I will justify them using scientific knowledge explaining what I have observed whilst carrying out the experiment.
Temperature helps determine what can enter or leave the cell and how well molecules found within the membrane can function. Temperatures that are too high or too low can seriously damage and, in the extreme temperature ranges, kill the cell through their effect on the cell's membrane.
Beetroot Evaluation AS Biology Watch. Announcements. So if I'm investigating how temperature affects the amount of pigment released from the cell surface membrane of the beetroot slices,. I did the evaluation today for the beetroot experiment.
Abstract: In this experiment I found out that as the concentration of the alcohol was increased so did the colour intensity of the solution. This is because the higher concentration of ethanol, results in more damage done to the cell membrane, resulting in leakage of red pigment from the cell.
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A damaged beetroot cell with a cracked membrane would initiate the anthocyanin bleeding from the cell just like a dye. This aspect could be used to test the conditions that have an effect on the integrity of the cell membrane. The cell membrane in a beetroot seed is made up of a phospholipids' bi-layer, which sorts a liquid mosaic structure.
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