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The Effect Of Temperature On A Plasma Membrane
Aim:
This experiment aims to determine what effect an increase in the surrounding temperature has on the plasma membrane of a typical plant cell structure.
Hypothesis:
An increase in temperature will damage and denature the plasma membrane and cause the cytoplasm and other substances contained within the membrane to leak out.
Introduction:
The purpose of a cell membrane is to control the transport of substances moving into and out of a cell. The membrane is an extremely thin layer (8 to 10 manometers (nm)) thick, which is partially permeable. ... The lipids found in cell membranes belong to a class known as triglycerides, so called because they have one molecule of glycerol chemically linked to three molecules of fatty acids. ...
Despite their many differences in appearance and function, all cells have a surrounding membrane (called the plasma membrane) enclosing a water-rich substance called the cytoplasm. ...
In the cells of a beetroot plant, a substance called anthocyanin is contained within the plasma membrane. ... If a cell is damaged in a beetroot plant and the membrane is broken, the anthocyanin bleeds from the cells like a dye. It is this characteristic that can be exploited to test which conditions affect the integrity of the cell membrane.
Because we are experimenting with the effects of temperature on the membrane, we will place the samples of beetroot into a water baths of varying temperatures and measure the colour change in the water.
Approximate Word count = 1169
Approximate Pages = 4.7
(250 words per page double spaced)
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