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How does temperature affect the permiability of cell memmbrane?

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  • Essay length: 563 words
  • Submitted: 10/11/2008
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AS and A Level Molecules & Cells

The first 200 words of this essay...

Introduction:

I am going to find out "How the temperature affects the permeability of the cell membrane?". To investigate what would happen to the beetroot as the temperature is being increased.

Hypothesis:

I think when the temperature is at its normal limit the water around the beetroot would be clear. But as the temperature is increased the protein get's denatured; bye which means it's will change its shape. Allowing the pigments of the beetroot to move from inside to the outside of the cell. This would result in the absorbance of the colour to increase. Therefore the water where the beetroots are kept in would turn reddish(caused bye the red pigments of the beetroot). The higher the temperature the darker the colour absorbed.

Equipment:

* Raw Beetroot

* Size 4 cork borer

* White tile

* Knife

* Ruler

* Plastic beaker about 250 cm

* Forceps

* 2 boiling test tube tracks

* 9 boiling tubes

* Thermometer (one per water bath)

* Colorimeter

* Cuvettes

* Stop clock

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