Examples, lessons, videos and experiments that are suitable for Biology.
AP Biology Lab: Diffusion and Osmosis, Enzyme Catalysis, Mitosis and Meiosis
AP Biology Lab 1: Diffusion and Osmosis
This video starts with a brief description of diffusion and osmosis. It then describes the diffusion demonstration and how molecules move over time. It then explains the concepts behind the osmosis lab and how potatoes are affected by increasing sucrose molarity.
AP Biology Lab 2: Enzyme Catalysis
This video starts with a brief description of enzymes and substrates. It then explains how you can measure the rate of an enzyme mediated reaction. Catalase from yeast is used to break hydrogen peroxide down into water and oxygen. It also explains how temperature and pH could affect the rate of a reaction.
AP Biology Lab 3: Mitosis and Meiosis
This video compares and contrasts mitosis and meiosis. It shows how you can count cells in various phases of mitosis to construct a cell cycle pie chart. It also explains how you can use the fungus Sordaria to calculate map units using the frequency of cross over.
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