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Fermentation Take-home PPAO:
(a.k.a., PPAO 1)

  1. How is a molecule of sucrose processed to ethanol in a solution containing yeast?  Assume no oxygen is present. Show every enzymatic step, as well as the structure of every molecule from sucrose to the final product. (See glycolysis website for help.) (See info on page 48 in the course notes.)
  2. Why is it inaccurate to say that the world of fermentation is only lactate or ethanol types?  Provide details to support your claim. (See info beginning on page 68 in the course notes.)
  3. How are bacteria and yeast used to produce a loaf of sour dough bread? Include details of the biochemical pathways they use to do so. (See info beginning on page 53 in the course notes.)