Some Gay Stuff

What causes moldy bread and foods? How can you stop it? If you understand what fermentation is and how yeast survive you can answer these questions. Fermentation is the conversion of pyruvic acid into other compounds such as lactic acid or ethyl alcohol. Fermentation occurs when cells do not have oxygen. Some Organisms that use fermentation are fungi and bacteria. Yeast are a type of fungus that uses fermentation for cellular respiration. This experiment tests at what temperatures yeast can perform fermentation.

If the temperature is freezing then fermentation will not occur. The Materials needed for this experiment are 40

The Materials needed for this experiment are 40 plastic bottles , 20 rubber tubes, 20 rubber bands, 2 100ml beakers, a 400ml beaker, a graduated cylinder,60ml of yeast, 300ml of water, a liter of Bromthymol Blue, and a liter of sucrose solution.

Make 50ml of sucrose and yeast solution by adding a

spoonful of yeast to 15ml of