After Harry was accepted to Hogwarts in 1991, Hagrid was given the task of actually locating Harry, as Harry's uncle Vernon was doing everything in his power to prevent his nephew from receiving his Hogwarts acceptance letter.
Sucrose is a disaccharide that yeast cells convert to glucose for alcoholic fermentation. When the yeast cells produce CO 2, this gas is trapped in bubbles in a layer of foam. Your teacher will pass around a cup with a foam layer so you will know what it looks like.
Yeast is a good example of an organism that undergoes alcoholic fermentation. The same process that goes on in the mitochondria during lactic acid fermentation also happens in alcoholic fermentation. The only difference is that the byproduct of alcoholic fermentation is ethyl alcohol.