The results presented by the graph showed that there was a positive relationship/trend between temperature and light absorbance. The higher the temperature of the water surrounding the beetroot, the more coloured the water around the beetroot was. This is shown in the graph by: at 0°C, the water surrounding the beetroot was fairly pink and had an averaged amount of 0.074 absorbency. At 80°C, the water surrounding the beetroot was very pink almost red, and had an average of 0.982 absorbency.
Conclusion
The hypothesis was that beetroot left to diffuse at a higher temperature will have a higher % absorption of light than beetroot but to diffuse at a lower temperature. This hypothesis was correct because as you can see in the results …show more content…
The effect temperature has on the cell membrane is that at low temperatures, the cell membrane becomes turgid (stiff, harder) in order to 'adapt' to it's new environment, making it harder for substances to pass/diffuse through it, at higher temperatures, the cell is softer, and more fluid like and when the temperature is too hot for the cell to handle, it breaks up or 'melts', releasing what was inside of the cell. This is shown by the results in the graph by the lower temperature not showing much pigment diffused into the water and there being a lot of pigment in the water diffused at a higher temperature. Temperature can also affect the rate of diffusion because a higher temperature will cause molecules to move faster and increase the rate of diffusion, allowing more pigment to pass through the membrane, in the 5 minutes given, giving a more pink/red color to the water surrounding the beetroot at a higher temperature, and at lower temperatures slowing down the molecules and making the rates of diffusion lower in colder temperatures, giving it a paler appearance. This explains the results of this investigation because the results shown by the graph and the the data recorded was that there was more light absorbency in water diffused with beetroot at a higher temperature (80°C) than water diffused with beetroot and a colder temperature