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BIOLOGY COURSEWORK Aerobic respiration in yeast Introduction In this experiment I will be looking into how the temperature will affect the amount of carbon dioxide produced in yeast, thus I am looking at aerobic respiration in yeast. Enzymes are biological catalysts, they speed up chemical reactions in our bodies and they are proteins which have a complex three-dimensional shape. An enzyme shape is always important and it has substrate which matches the shape of the enzyme. Enzymes have an area called the active site where the enzyme and substrate react and after the Reactions have taken place the products are released. An enzyme is always unchanged at the end of the reaction and the reaction depends on the collision between the enzyme and substrate, this is called the lock and key theory. Planning Procedure: In this coursework my method to measure the affects of temperature in the aerobic respiration in yeast is to first measure...

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