Chapter 1 - Microbial World and You Chapter 1 What is...

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Unformatted text preview: Microbial World and You Chapter 1 What is Microbiology? ◗ Micro - too small to be seen with the naked eye ◗ Bio - life ◗ ology - study of Organisms included in the study of Microbiology ◗ 1. Bacteria ◗ 2. Protozoans ◗ 3. Algae ◗ 4. Parasites ◗ 5. Yeasts and Molds • Fungi ◗ 6. Viruses ◗ Bacteriology ◗ Protozoology ◗ Phycology ◗ Parasitology ◗ Mycology ◗ Virology Microorganisms - Microbes - Germs 5 Kingdoms of Living Organisms ◗ 1. Animalia ◗ 2. Plantae ◗ 3. Fungi ◗ 4. Protista ◗ 5. Monera - Bacteria and Cyanobacteria ◗ Eukaryotic vs. Prokaryotic 5 Characteristics of Life ◗ 1. Cells ◗ 2. Maintain structure by taking up chemicals and energy from the environment ◗ 3. Respond to stimuli in the external environment ◗ 4. Reproduce and pass on their organization to their offspring ◗ 5. Evolve and adapt to the environment Taxonomic Classification ◗ Kingdom ◗ Phylum ◗ Class ◗ Order ◗ Family ◗ Genus ◗ species ◗ Man ◗ Animalia ◗ Chordata ◗ Mammalia ◗ Primate ◗ Hominidae ◗ Homo ◗ sapien Taxonomic Classification ◗ Kingdom ◗ Phylum ◗ Class ◗ Order ◗ Family ◗ Genus ◗ species ◗ Cat ◗ Animalia ◗ Chordate ◗ Mammalia ◗ Carnivora ◗ Felidae ◗ Felis ◗ domestica Binomial System of Taxonomic Classification ◗ Use only the Genus and species ◗ Homo sapien ◗ Felis domestica ◗ Escherichia coli ◗ Genus and species are either underlined or italicized ◗ Genus is always capitilized ◗ species is never capitilized Classification System ◗ 3 Domains 1978 Carl Woese • 1. Bacteria • Unicellular prokaryotes with cell wall containing peptidoglycan • 2. Archaea • Unicellular prokaryotes with no peptodoglycan in cell wall • 3. Eukarya • Protista • Fungi • Plantae • Animalia Bacteria - what comes to mind? ◗ Diseases ◗ Infections ◗ Epidemics ◗ Food Spoilage ◗ Only 1% of all known bacteria cause human diseases ◗ About 4% of all known bacteria cause plant diseases ◗ 95% of known bacteria are non-pathogens Microbes Benefit Humans ◗ 1.Bacteria are primary decomposers - recycle nutrients back into the environment (sewage treatment plants)...
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This note was uploaded on 04/13/2010 for the course BIO 3302 taught by Professor Dr.nasreenhaque during the Fall '09 term at CUNY City Tech.

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Chapter 1 - Microbial World and You Chapter 1 What is...

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