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Published byEdmund Owen Modified over 8 years ago
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Biodiversity: prokaryotes, protists & viruses Chapter 10.14 – 10.17 & Chapter 13
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All three domains contain microscopic organisms. Focus now: Prokaryotes
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Prokaryotes in general Domains bacteria & archaea Bacteria on the point of a pin, magnified 650x
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Characteristics used to classify Domain Bacteria
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Shape of cells
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Characteristics of bacteria cell wall Two types of cell walls; use a Gram stain to identify type Gram + Gram –
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Modes of Nutrition “organic feeders” “rock feeders” “light self feeders”
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Characteristics of Domain Archaea
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All three domains contain microscopic organisms. Focus now: Domain Eukarya
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Kingdom Protista (multiple kingdoms ?)
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Protists cont.
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What about viruses? What is a virus? It’s not a cell...
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Two kinds of viruses DNA viruses – RNA viruses
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Who is at risk? Practically everything;
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