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Kingdom Archaebacteria
Domain Archaea Kingdom Archaebacteria
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Phyla Crenarchaeota Euryarchaeota Korarchaeota Nanoarchaeota
Thaumarchaeota
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Archaebacteria Archea – means ancient Unicellular Prokaryotes
No membrane bound organelles No organized nucleus
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Cell Structure Cell membrane consists of a phospholipid bilayer
The types of lipids are significantly different from all other membranes Most Archaebacteria have a cell wall that provides protection Move using flagella
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Cell Structure Have many different shapes Spherical Rod shaped Spiral
Flat Needle like
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Metabolism Heterotrophs Autotrophs Lithotrophs – inorganic compounds
Organotrophs – organic compounds Autotrophs Phototrophs – use light to make food for energy
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Environment Archaea are microbes. Most live in extreme environments. These are called extremophiles. Other Archaea species are not extremophiles and live in ordinary temperatures and salinities. Some even live in your guts!
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Environment Methanogens – produce methane Thermophile - love heat
would probably freeze to death at ordinary room temperature. Halophiles – love salt, called hypersaline environments
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Respiration Obligate anaerobe – must NOT have oxygen
Obligate aerobe - must have oxygen Faculative anaerobe – can have oxygen or not
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Asexual reproduction – called binary fission
Conjugation – mixing DNA between two cells What type of cells are Bacteria? – prokaryotes What does that mean? How do we tell them apart from other cells? – no membrane bound organelles Show youtube video if time 10
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Domain Bacteria Kingdom Eubacteria
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Phyla Grouped based on qualities of their shape and membrane structure
More than 20 different Phyla
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Eubacteria Eu - means True Unicellular Prokaryotes
No membrane bound organelles No organized nucleus
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Cell Structure Cell membrane consists of a phospholipid bilayer
Many Eubacteria have a cell wall that provides protection Move using flagella
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Cell Structure Have three different shapes Cocci Bacilli Spirilla
spherical Bacilli Rod shaped Spirilla Spiral
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Cell Structure Endospore
Created by a bacteria when conditions become unfavourable A hard “shell” surrounding the genetic material
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Metabolism Heterotrophs Autotrophs Lithotrophs – inorganic compounds
Organotrophs – organic compounds Autotrophs Phototrophs – use light to make food for energy
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Environment Bacteria frequently secrete chemicals into their environment in order to modify it favourably Live in a variety of environments
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Respiration Obligate anaerobe – must NOT have oxygen
Obligate aerobe - must have oxygen Faculative anaerobe – can have oxygen or not
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Asexual reproduction – called binary fission
Conjugation – mixing DNA between two cells What type of cells are Bacteria? – prokaryotes What does that mean? How do we tell them apart from other cells? – no membrane bound organelles Show youtube video if time 20
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