Why does yeast create alcohol fermentation when combined with Glucose and Sucrose?

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Why does yeast create alcohol fermentation when combined with Glucose and Sucrose?

2007-07-09 15:17:34 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Biology

3 answers

Alcohol and sugar are similar. Yeast has enzymes which break down the sugar into alcohol.
Starch-sugar-alcohol-vinegar- ? Something >.>

2007-07-09 15:21:55 · answer #1 · answered by flibbitygibet 2 · 0⤊ 0⤋

Yeast breaks down glucose and/or sucrose to make energy, in the form of ATP. Alcohol is a by-product of the regeneration of NAD, which is necessary (to accept hydrogen) so the yeast can continue to carry on glycolysis.

2007-07-09 23:03:45 · answer #2 · answered by kt 7 · 0⤊ 0⤋

Yeast secretes an enzyme called Zymase which is essentially something that breaks down the larger carbon chains of glucose and sucrose (C6H12O6) to create smaller molecules of alcohol (C2H5OH)

2007-07-09 22:23:16 · answer #3 · answered by Mock Turtle 6 · 0⤊ 0⤋