I will also use the same batch of yeast because this will ensure that the yeast granules have the same surface area use small decreases in hydrogen peroxide concentration i will use the following concentrations of hydrogen peroxide: 100%, 90%, 80%, 70%, 60% and 50. - yeast yeast are a tiny form of fungi or plant-like microorganism (visible only under a microscope) that exist in or on all living matter ie water, soil, plants, air, etc a common example of a yeast is the bloom we can observe on grapes. Liver and yeast are used to decompose hydrogen peroxide 401 catalase 402 discussion 403 catalase - preparation all zipped the fall in water level is measured with a measuring cylinder 4 a comparison of the permeability to water of different samples of subsoil.
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