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The factors that affect the respiration of immobilised yeast
Member rating: No Rating | Words: | Submitted: Sat Jan 29 2005
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The factors that affect the respiration of immobilised yeast; Plan: Hypothesis; The time taken for the yeast beads to rise will decrease with increasing temperature until it reaches a minimum point, known as the optimum temperature, after which the time taken for the yeast beads to rise will then increase with increasing temperature. Null Hypothesis: Temperature will have no effect on the time taken for the yeast beads to rise. Prediction: I predict that a rise in temperature will produce a faster rate of reaction due to higher temperatures causing an increase in the kinetic energy of the enzyme and substrate molecules. This means that having solutions at higher temperatures will effectively cause more collisions between the substrate and active sites of the yeast (saccharomyces cerevisiae). However, an increase in temperature will also affect the stability of the enzyme molecules. Above the optimum temperature, the enzyme molecules begin to vibrate so violently that their tertiary and...
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