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The Relationship Between Food Concentration, And Respiratory Activity

Part I of Essay
In this experiment different concentrations of sucrose were tested to determine which leads to the most respiratory activity in yeast. Yeast is a heterotrophic anaerobic fungus which lacks chlorophyll. Yeast is used commercially to ferment the sugars of wheat, barley, an ....

Part II of Essay
.... serially diluted, so that the sucrose concentration ranged from 30% to 0.12%. The hypothesis in this expriment was that the most respiratory activity would take place with 60% sucrose concentration. Since yeast fermentation requires sucrose and water, aproximately equal proportions of both would yield to the most respiratory activity. Once the sucrose concentration was serially cut to the desired level, the experimenter added 5 ml of yeast suspension to each one of the ten test tubes. Then, ten small test tubes were placed invertedly i ....

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Words: 373 - Pages: 2


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