Cells, Microscopes, and Domains of Life

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Cells, Microscopes, and Domains of Life
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Introduction

• Modern cell theory
• Different types of cells
• prokaryotic, eukaryotic
• Three cell components
• cell membrane, genetic material, cytoplasm
• Five kingdoms
• Three domains

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The hierarchy of biological order
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Classifying life
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The traditional 5-kingdom system
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The three domains of life
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The 5-kingdom system compared with alternative
schemes of classification
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Fig. 18-6 The Eukaryotic Tree of Life
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The Compound Light Microscope

• Prepared letter e
• NEVER USE COARSE ADJUSTMENT ON HIGH POWER!

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Microscopic Measurement (p.72)

• Field of View
• Diameter
• Table 1. Diameter of field of view with three
  different objective lenses

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Comparing Cells

• Domain Eukarya, Kingdom Protista
• Domain Eukarya, Kingdom Plantae
• Domain Eukarya, Kingdom Fungi
• Domain Eukarya, Kingdom Animalia
• Domain Bacteria

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Protista
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Fungi
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Animalia
Fig. 6-4 A Generalized Animal Cell
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Plantae
Fig. 6-5. A Generalized Plant Cell
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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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Any Questions?