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Osmosis In A Potato.

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  • Essay length: 657 words
  • Submitted: 23/03/2004
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GCSE Life Processes & Cells

The first 200 words of this essay...

Osmosis In A Potato

Intro:

My biology coursework is based round the osmosis process that takes place in potatoes. Osmosis is the intake of a salt solution through a selectively permeable membrane. The strength of a salt solution can have a dramatic difference on the amount the potato can take in, and how it reacts.

Here is an example of a selectively permeable membrane...

Variables:

An fundamental necessity in my biology experiment is to decide which variable I am going to use and modify. A variable is an aspect of the experiment which can be modified in order to change the outcome of the entire osmosis experiment. Below are the variables I have available

* Temperature

* Solution Strength

* Size Of Potato

* Weight Of Potato

After a lot of careful deliberation I have decided to use the solution strength as my variable. I chose this because it enables me to witness the effect different strengths of solution have on osmosis.

Method:

To carry out my experiment successfully I will need to stick to the diagram below....

Firstly, I will take 6 test tubes

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