Summary: Bfi - Laboratory Assignments

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• 1 Lab 1 - Nomenclature, Microscopes, and Bacteria

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• What enables the magnification of larger objects and organisms more than the compound microscope?

  Dissecting or stereoscopic microscopes enable the magnification of larger objects and organisms than the compound microscope.

• What do compound light microscopes use to focus light onto a specimen?

  Compound light microscopes use specialized lenses to focus light onto a specimen.

• How do bacteria reproduce?

  They reproduce extremely quickly through a process of simple division (binary fission).

• How must the genus and species be formatted according to binomial nomenclature?

  Both the genus and species must be italicized or underlined individually (leave a space between genus and species).

• What do more complex microscopes, such as the transmission electron microscope and the scanning electron microscope, enable?

  More complex microscopes, such as the transmission electron microscope and the scanning electron microscope, enable observation of cells and components of cells.

• What are bacteria described as in terms of cellular structure?

  Bacteria are prokaryotes which means they lack a membrane bound nucleus and organelles.

• What are some challenges with DNA methods mentioned in the text?

  Computer errors, contamination of organism material, and it relies on existing databases which may have their own errors.

• How much more can compound light microscopes used in the Biology labs at Brandon University magnify an image compared to what is observable with the naked eye?

  Compound light microscopes used in the Biology labs at Brandon University will magnify an image up to 1000x more than what is observable with the naked eye.

• How are taxonomic groups arranged?

  The taxonomic groups are arranged hierarchically and are named from the largest, most all encompassing group to the smallest, most exclusive group.

• What term is used for methods combining traditional classification with more modern DNA sequencing methods?

  Integrative taxonomy.