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Magnification

AP Biology (Campbell/Reece 8e) Chapter 6

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Biology
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Microscopes
Electron microscopy
Microscopy
Electron beam
Electron microscope
pathology
Optical microscope
Scanning electron microscope
Transmission electron microscopy
electron
Magnification
Ultrastructure

The Fundamental Units of Life Hierarchy of biological organization ? cells at bottom Plants & animals are multicellular (eukaryotic) Cells sense and respond to environmental fluctuations Keep biological theme in mind : evolution ? all cells can be seen as the descent of earlier cells that have been modified during evolution on Earth 6.1 To study cells, biologists use microscopes and tools of biochemistry Invention of microscopes in 1590 and refinement in 1600s Light Microscopes ? visible light is passed through the specimen then the glass lenses -First used by Renaissance scientists and the one used in the lab -Lenses refract light so image of specimen has been magnified Three important parameter in microscopy ? Magnification, Contrast, & Resolution

microbio

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Biology
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Biology
Optics
Microscopy
Laboratory equipment
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microbiology
Laboratory glassware
Optical microscope
bacteria
Microscope
Magnification
Objective

Bio104 Laboratory ? Student?s Guide John Jay College, C.U.N.Y Lab #4 ? Page 1 Lab #4: Use of the Microscope; Bacteria and Protists I. The Domains of Life A. There are three major branches, or Domains, on the tree of life: Archaea, Bacteria, and Eukarya. B. It turns out that most of the living things on earth, comprising most of the biomass, are microscopic single-celled species! Today we will look at unicellular examples of two different domains: Bacteria and Eukarya. C. Protists are eukaryotes and most (but not all) are single-celled. However, some of the single-celled protest species can exist in colonies that resemble a multicellular organism, but this is not true
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