EQUATION FOR ANAEROBIC RESPIRATION (YEAST):
EXPERIMENT:
CARBON DIOXIDE PRODUCTION BY YEAST
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Diagram showing Carbon Dioxide Production by Yeast
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METHOD:
Mix boiling tube of Sugar solution with Yeast, covering it with a layer of Oil to prevent the entry of Oxygen; hence, ensuring aerobic respiration
Boiling tube is connected to a test tube of Limewater via capillary tube that is kept airtight by a bung
Boiling tube of Sugar solution with Yeast is placed in a Water bath of set temperature
Rate of Carbon Dioxide production is measured by number of bubbles produced in a fixed time in test tube of Limewater
Compare results obtained at different temperatures
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RESULTS:
As temperature increases towards optimum, the rate of Carbon Dioxide production will increase
This is because the increase in temperature towards optimum will allow optimum enzyme activity for Yeast enzymes, hence increasing the rate of Anaerobic respiration to produce Carbon Dioxide (and Ethanol)
However, as temperature increases above optimum, enzymes involved in Anaerobic respiration will denature, therefore causing the rate of Carbon Dioxide production to decrease
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Isn't it supposed to be "To ensure anaerobic respiration"
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