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* Yeast culture is not every good to your eye so care must be taken. ...
Apparatus
* Test tubes - for containing some of the yeast culture for the experiment. ...
* Pipette - for putting the yeast culture into test tubes and Durham tubes.
* Yeast culture - for testing the rate of fermentation. ... A small Durham tube has to be filled with yeast culture of the same concentration and inverted in each test tube. ... In fermentation the two important substances are the yeast and sugar in the form of glucose. ... This will release energy, which is necessary for the yeast cells to use for multiplying. ... The yeast culture was not shaken at the beginning therefore the yeast might not be spread out through out the culture. ... This result for the yeast cells to loose water to the solution, which makes the yeast less efficient. ...
Although I did not do 50% sugar concentration I could still say that the best sugar concentration will still be 100% because it has the nearest osmotic pressure on both the solution and the yeast cells.
Approximate Word count = 1473
Approximate Pages = 5.9
(250 words per page double spaced)
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