Chemical reaction.
During such anaerobic conditions, yeast convert carbohydrates—starches and sugars—to alcohol and carbon dioxide gas. This process is known as fermentation. The fermentation process of yeast is caused by enzymes, catalysts in chemical reactions similar to the digestive enzymes in the human body. Beer and wine are produced by fermenting glucose with yeast. Yeast contains enzymes that catalyse the breakdown of glucose to ethanoland carbon dioxide. In this experiment, a glucose solution is left to ferment. Students then test for fermentation products. Then other yeast enzymes convert one kind of sugar molecule to another. Still other enzyme reactions break apart the sugar molecule (composed of carbon, hydrogen, and oxygen atoms) into ethyl alcohol and carbon dioxide. Fermentation is the name given to the process where a sugar (glucose) solution containing yeast is turned into alcohol (ethanol). The balanced equation for fermentation is. glucose ethanol + carbon dioxide C6H12O6(aq) 2C2H5OH(aq) + 2CO2(g). Beer and wine are produced by fermenting glucose with yeast. Yeast contains enzymes that catalyse the breakdown of glucose to ethanol and carbon dioxide. In this experiment, a glucose solution is left to ferment. Students then test for fermentation products. Confidence votes 360. Fermentation is a form of biochemical metabolism usually under anaerobic conditions. A common variant of this reaction is the fermentation of sugar by yeast to form ethanol. Class practical. Beer and wine are produced by fermenting glucose with yeast. Yeast contains enzymes that catalyse the breakdown of glucose to ethanol and carbon dioxide. In this experiment, a glucose solution is left to ferment. Students then test for fermentation products.
http://www.scienceclarified.com/Vi-Z/Yeast.html http://www.rsc.org/learn-chemistry/resource/res00000470/fermentation-of-glucose-using-yeast?cmpid=CMP00005115#! http://www.scienceclarified.com/Vi-Z/Yeast.html http://www.gcsescience.com/rc17-fermentation-yeast-alcohol.htm http://www.nuffieldfoundation.org/practical-chemistry/fermentation-glucose-using-yeast http://www.answers.com/Q/What_type_of_reaction_is_fermentation http://www.nuffieldfoundation.org/practical-chemistry/fermentation-glucose-using-yeast
what type of reaction is yeast fermentation