Cells, Microscopes, and Domains of Life

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Presentation transcript:

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

Euglena Protista:

Fig. 20-3. Rhizopus (bread mold) life cycle Fungi: Fig. 20-3. Rhizopus (bread mold) life cycle

Fig. 6-4 A Generalized Animal Cell Animalia: Fig. 6-4 A Generalized Animal Cell

Fig. 6-5. A Generalized Plant 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.

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