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Steven Vickery 11E SC1 Biology Practical Investigation Hypothesis; Enzymes are biological catalysts. They speed up chemical reactions, which take place inside living things. Molecules are constantly moving about and bumping into each other. Now when a substrate molecule bumps into a molecule of the right enzyme, it fits into a depression on the surface of the enzyme molecule. This depression is called active site. The reaction then takes place and the molecules of product leave the active site, freeing it for another substrate molecule. In this investigation we are going to see what the atmosphere and the environment have on the breaking down of proteins via a protein-digesting enzyme. Safety Precautions; To make sure this experiment is safe, I have decided that the water bath temperature range during the experiment will not cause physical damage (e.g. scolding). The protein digesting enzyme bottle will also be clearly marked as,"Harmful if swallowed". Steps will also be taken...

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