Answer
A) yeast is a microscopic fungus that converts sucrose into carbon dioxide. To make yeast active it should be under moist condition so water is added here. As time proceds balloon size increases due to Formation of more and more carbon dioxide. After an hour it reaches maximum size. On further it may explode.
B) using iodoacetate will decrease the formation of cardon dioxide by inhibiting fermentation reaction.iodoacetate acts as a barrier when reactants trying to react and stops the rate of reaction.
C) Yeast do not have the lactase enzyme and cannot break down lactose. If you add lactaid, lactose will be broken down into glucose and galactose, which can be used by the yeast.
Work Step by Step
A) yeast is a microscopic fungus that converts sucrose into carbon dioxide. To make yeast active it should be under moist condition so water is added here. As time proceds balloon size increases due to Formation of more and more carbon dioxide. After an hour it reaches maximum size. On further it may explode.
B) using iodoacetate will decrease the formation of cardon dioxide by inhibiting fermentation reaction.iodoacetate acts as a barrier when reactants trying to react and stops the rate of reaction.
C) Yeast do not have the lactase enzyme and cannot break down lactose. If you add lactaid, lactose will be broken down into glucose and galactose, which can be used by the yeast.