Beetroot Coursework

Therefore to conclude that all cell membranes act in this way would be incorrect.

Different plant cell membrane may be adapted to cope better or worse than beetroot cell membranes.

A colourimeter was used for the previous testing on the affects of the temperature and was reliable for statistical information instead of an eye test comparison.

The qualitative information given from the colourimeter is precise; therefore a colourimeter will be used for the final experiment with the affects of ethanol on the beetroot membranes. By studying the effects of ethanol or organic solvents on beetroot cell membranes can give scientists an idea how ethanol or organic solvents may have on a persons cell membrane.

Another limitation was the range of concentrations.

To have a better understanding of the effect of ethanol on cell membrane would to conduct a smaller range and then concentrate on where the cell membranes are most affected.For the preliminary work, a similar experiment will be investigating the effects of ethanol on the cell membrane of the beetroot instead of temperature.After completing the temperature investigation, a suitable prediction could be presented by employing the results.Also, more dye would be present as the lipids are essential to the structure of the cell membrane as they control the substances that enter and leave the cell.Ethanol could also destroy some the proteins or denature the structure because protein has a tertiary structure.From this experiment the cell membrane from the beetroot would show how much ethanol would affect it's cell membrane and the level of damage at what concentration or ratio with distilled water.From the results it would give scientist predictions of the effect of ethanol on a persons stomach or digestive lining.The ethanol would destroy the hydrogen bonds that hold the protein structure.Therefore, with the lipids and proteins destroyed in the cell membrane, the pigment is allowed to escape from the cell due to there being no cell membrane holding substances in the cell.With the cell membrane being in contact with ethanol in the extracellular fluid, there is direct contact with the solvent.Therefore, by diffusion the ethanol is secreted into the cell and along the way destroys the permeability of the cell membrane.


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