Viruses and Bacteria
- Grade Level: Senior High (10-12)
- Subjects: Biology
- Produced By: BioMedia Associates
- Year: 2004
- Country: United States
- Language: English
- Running Time: 34m
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This program examines the discovery of viruses and their structure, how viruses are studied, and how they infect their hosts and replicate. Details are provided on the T-4 bacteriophage and retroviruses such as HIV. The bacteria section uses compelling microscopy of living bacteria to examine their structure, physiology, behavior, and the vital roles these microbes play in the biosphere, including oxygen production (cyanobacteria), decomposition and nitrogen fixation. They are also shown as parasites as well as helpful symbionts. Twelve minutes of additional live observation of a variety of bacteria can be used to introduce or recap the lesson or play as visual ambiance during laboratory work.