Ex_3-3_Eukaryotic Microbes Lab_lecture

Ex_3-3_Eukaryotic Microbes Lab_lecture - distinct visible...

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1 Experiment 3-3: Examination of Eukaryotic Microbes (pgs 72-76) Purpose : To learn and understand the workings of a brightfield microscope and to attempt to identify the microscopic organisms living in various habitats General criteria for differentiation: Protozoa: -unpigmented, motile organisms - belongs to Kingdom Protista - eukaryotic - single-cell transparent organisms, with a cell membrane, and no cell wall - in lab, paramecium are the most common to be seen Algae: -greenish or golden brown organisms - belongs to Kingdom Protista and includes all the photosynthetic eukaryotic organisms - no tissue differentiation
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Unformatted text preview: - distinct, visible nuclei and chloroplasts- unicellular or colonial Materials: (all lab sections) Rain water Aquarium water Rain water + Hay Aquarium water + Hay Rain water + Leaves Aquarium water + Leaves Methods: Prepare a wet mount of the specimen and observe under the microscope. General criteria for differentiation (continued): Cyanobacteria:- blue-green organisms- belong to Kingdom Monera- prokaryotic type of nucleus- Cyanobacteria: chlorophyll a - phototrophic bacteria:bacteriochlorphyll-Cellular structure is considerably different from the eukaryotic algae...
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