1. What effect did the addition of the enzyme (lactase) have on the fermentation rate of lactose? Why?
2. Cellulosic Biofuels are fuels that are produced by fermentation of cellulose containing materials (wood,leaves,paper,etc.) by yeast. Based on the results of your experiment and what we have discussed in class about the structure of cellulose what would be necessary before yeast cells are capable of fermenting sugars from cellulose? (Hint: consider the similarities between lactose and cellulose?)
3. How many moles of ethanol are made by the anaerobic metabolism of 2 moles of glucose?