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Cells, Microscopes, and Domains of Life Introduction • Modern cell theory • Different types of cells – prokaryotic, eukaryotic • Three cell components – cell membrane, genetic material, cytoplasm • Five kingdoms • Three domains The hierarchy of biological order Classifying life The traditional 5-kingdom system The three domains of life The 5-kingdom system compared with alternative schemes of classification Fig. 18-6 The Eukaryotic Tree of Life The Compound Light Microscope • Prepared “letter e” • NEVER USE COARSE ADJUSTMENT ON HIGH POWER! Microscopic Measurement (p.72) • Field of View • Diameter • Table 1. Diameter of field of view with three different objective lenses Comparing Cells • • • • • Domain Eukarya, Kingdom Protista Domain Eukarya, Kingdom Plantae Domain Eukarya, Kingdom Fungi Domain Eukarya, Kingdom Animalia Domain Bacteria A Prokaryotic Cell Diversity of Bacterial Forms Coccus Bacillus Spirillus Protista: Euglena Fungi: Fig. 20-3. Rhizopus (bread mold) life cycle Animalia: Fig. 6-4 A Generalized Animal Cell Plantae: Fig. 6-5. A Generalized Plant Cell Putting Away the Microscope • Remove the slide and return it to its proper place • Turn down the rheostat to “3” or lower • Turn off the illuminator switch. • Revolve the nosepiece so the 4X objective is in place. • Cover the microscope with its cover. Any Questions?
