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The set apparatus was assembled by a group of students to investigate some physiological process.

      

The set apparatus was assembled by a group of students to investigate some physiological process.
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a) i) Give two aims of the experiment.
ii) Explain observations expected after 24hrs.
b) Before the experiment, the glucose was boiled the cooled.
i) Why was it necessary to boil the solution?
ii) What was the importance of the oil layer in the experiment?
c) Describe a control experiment for the set up?
d) Suggest one industrial application of the process being investigated?

  

Answers


sharon
a).i)
To show that energy is released in anaerobic respiration;
To show that carbon (IV) oxide is produced in anaerobic respiration;
ii) Increase in temperature since energy is released;
Colour of indicator changed to yellow due to acidity/carbon (IV) oxide released changed indicator to yellow;
b) i) Expel dissolved oxygen;
ii) Prevent entry of air/oxygen into glucose solution;
c) Use glucose solution without yeast/boil to kill yeast cells;
d) Ethanol production in breweries; bread production in bakeries;
sharon kalunda answered the question on September 17, 2019 at 06:53


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