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Biology Coursework - Enzymes. Planning. Aim - the aim of the experiment is to find the optimum temperature that a protease enzyme works at. To do this I will need to plan a safe experiment that will be a fair test. For the experiment I have chose to use some photographic film, which is covered in silver salts, the silver salts are held on by a protein glue. Silver Salts Protein Glue Transparent Film If the experiment goes according to plan then the protease will digest the protein glue, turning it into amino acids and so the silver salts will fall off. This will then mean that only the transparent film is left and so as soon as I can see through the film I will stop timing. I can do this by altering one of the two variables of the experiment. Safety - To keep the highest standard of safety during this experiment...

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