The diagram below shows a set – up that was used to demonstrate Fermentation
Glucose solution was boiled and oil added on top of it. The glucose solution was then allowed to cool before suspension.
(a) Why was the glucose solution boiled before adding the yeast Suspension?
(b) What was the importance of cooling the glucose solution before adding the yeast suspension?
(c) What was the use of oil in the experiment?
(d) What observation would be made in test tube B at the end of the experiment?
(e) Suggest a control for this experiment
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