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11 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Types of bacteria ? |
1- archaebacteria 2-eubacteria (true bacteria) |
Truth |
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Key points of archaebacteria |
1- prokaryotic 2-cell wall - non cellulosic (polysaccharide+ amino acid ) 3- nuclear membrane absent 4- cellular |
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Mode of nutrition |
Autotrophic Chemo and photosyn 2- heterotrophic |
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Why archaebacteria special? |
Can live in harsh habitats 1- marshy areas - methanogens 2-hot sulphur springs - thermoacidophiles 3-extreme salty areas - halophiles |
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Why survive harsh areas? |
Because of diff wall structure |
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What is absent ? |
Absence of peptidoglycan cell wall |
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Characteristic of true bacteria |
1- rigid cell wall 2- if motile { flagellum} |
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Cyanobacteria? |
1- Blue - green algae 2- Have chlorophyll a similar to green plants 3- photosynthetic autotroph |
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Characteristics ? Cyanobacteria |
Unicellular , colonial or filamentous , freshwater/ marine or terrestrial algae |
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Colonies are surrounded by ? |
Gelatinous sheath |
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Heterocyst? |
Cells - fixed atmospheric nitrogen |
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