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The effect of substrate of yeast fermentation and its respiration rate
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| Submitted: Mon Mar 05 2007
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The effect of substrate of yeast fermentation and its respiration rate. Aim: The aim is to measure the amount of carbon dioxide bubbles produced by three different respiratory substrates; glucose, sucrose and starch that are acted upon by yeast. To determine, which substrate produces the most amount of bubbles. I will carry out this experiment by reacting yeast with the three different respiratory substrates at constant temperature, pH, mass, volume and other variables and I will measure the rate of respiration. I will add each respiratory substrate sugars with yeast and that will produce alcohol, carbon dioxide and energy and I will measure the rate at which most bubbles are produced for each sugar. Yeast + Respiratory Substrate Bubbles (CO2) + Alcohol + Energy Prediction: I predict that when glucose reacts with yeast it will produce most amount of bubbling than sucrose and starch and therefore the rate of respiration of glucose with...
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