Topic H: Nomenclature, Identification, & Classification of Prokaryotes

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1

Taxonomy

The science that studies organisms in order to arrange them into groups

2

Reasons for taxonomy

To establish a basis for identifying organisms, arranging similar organisms into groups, to allow an exchange of ideas among scientists, and to obtain information on how different forms of life evolved

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3 areas of taxonomy

Nomenclature, Classification, & Identification

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Nomenclature

Assigning names to organisms

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Proper nomenclature setup

Two-name system

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Correct when in print

Staphylococcus aureus

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Correct when written

Staphylococcus aureus

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What names of organisms determine

Who discovered it, the morphology, where it is found, what nutrients are used, & the disease it causes

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Classification

Arranging organisms into similar groups

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What all life forms are classified into

3 domains, 7 categories, & 5 kingdoms

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Domains

Arachaea, Bacteria, Eukarya

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Categories, in order

Kingdom, Phylum, Class, Order, Family, Genus, Species

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Suffix for category, Order

-ales

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Suffix for category, Family

-acease

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Kingdoms

Monera, Protista, Plantae, Fungi, & Animalia

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Criteria for classifying bacteria

Morphology, staining, growth, nutrition, physiology, biochemistry, & genetics

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Identification

Characterizing an organism to determine the group it belongs to

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Genotype

Genetic makeup of the organism

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Phenotype

Physical characteristics of the organisms

20

Some methods for identification

IMViCs series, catalse, lysine, phenylalanine, nitrate, biochemical tests