Investigating the Effect of Temperature on the permeability of cell membranes in Beetroots.
Introduction:
This experiment is based on the permeability of beetroot cell membranes. When the membrane has been disrupted the beet root cell containing the pigment starts to leak out by dint of the process of diffusion. This is proved by the fol baseborning experiment that has been do where distilled beet root cells were put into different tubes with different temperatures of affectionateness which help to release the pigments stored within these cells. These pigments are then collected and analyzed with the aid of a colorimeter.
Hypothesis:
I suppose that the higher the temperature, such as 70-80?C, a larger mensuration of pigment would be diffused making the colour little transparent and more absorbent of light. In comparison to low temperatures, I think that only a small enumerate of pigment would leak out. I think the reason rat my prediction would be that since there is a high fall of heat from the body of water it causes the membranes of the cell to break down quickly enabling more of the pigment to leak out.
The Variables in this try:
The Dependent Variables:
Transmission Measured by the colorimeter to clear quantitative results.
Absorbency measured by using the colorimeter to spend a penny quantitative results.
The Independent Variables:
Temperature Controlled by using electronic water baths along with a thermometer.
Time Controlled by the starting and fish fillet of a stop watch.
Apparatus needed for this experiment:
* half a beet root
* Cork
* Beaker
* Mounted Needle
* Distilled Water
* 6 test tubes (containing 6 cm3 of distilled water done using a measuring cylinder)
* Test tube rack
* A knife
* Colorimeters and curvettes
* 6 electronic water baths with the various different temperatures
* Thermometer
* Stopwatch
* Ruler
* Pipette
The manner:
1) Set the water baths to the appropriate...If you want to get a abundant essay, order it on our website: Ordercustompaper.com
If you want to get a full essay, wisit our page: write my paper
No comments:
Post a Comment