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20 Cards in this Set
- Front
- Back
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What are the characteristics of monera
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-Prokaryotic with no membrane - bound organells
-unicellular -single chromosome -most reproduce by bionary fission ( asexual ) -Great merabolic diversity |
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Why are archaebacteria also know as extremopiles
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-earths most extreme-loving prokaryotic micro organism
-Have special liquid structures allowing cells to survive extreme hot or cold -Through to be one of lifes first organsisms |
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Methanogens
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-Methane producing
- Live in oxygen free enviorments ( swamps, Marshes ) - use chemiacls as energy - Produce methane as waste |
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Halophiles
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- salt loving
- Live in salt pools ( up to 15% seawater only 3.5 ) |
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Thermacidophiles
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- Heat and acid loving
- Extremely hot and acidic envioments EX. Hot springs, Volcanoes, temp + 80 degrees C |
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Cocci
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-Round
- Resist drying |
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Bacilli
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- Rod shaped
- large surface area for absorbing nutrients |
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Spirilli
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- Spiral shaped
- move through fluids with less resistance |
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Diplo
( diplococci ) |
Arranged in pairs
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Staphylo
( staphylococci ) |
Arranged in a chain
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Strepto
( streptococci ) |
Arranged in clusters
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Obligate Aerboes
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Need oxygen
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Obligate Anaerobes
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-No oxygen
-Use fermentation to convert sugar into alcolhol and CO2 - Some also produce lactic acid, Acetic acid, Methane |
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Facultative Anaerobes
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-Can survive and grow with or without oxygen
- USe fermentation to convert sugar into alcohol and CO2 - Some also produce lactic acid, Acetic acid, Methane |
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How bacteria get their energy
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-Most heterotrophic ( Get food from other organisms )
-Parasites ( diesase causing bacteria that get their food from living organisms ) - Saprophytes ( food from dead and decomposing organic matter ) |
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How do bacteria get their energy
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- Some are autorophic ( make their own food )
- Photosynthesis ( Convert CO2 and water into sugar using sun energy ) - Chemosynthesis ( use energy from chemicals to make energy ) - Deep sea vent bacteria |
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Type of reproduction
( Asexual most produce this wait ) |
- Binary fission
- splitting in two - Copy DNA, Enongate, Septum adn cell wall form, cells seperate into 2 identical fissions |
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Type of reproduction
( sexual some ) |
- Conjugation
- Cells link to form bridge - One bacterium tranfers part or all of chromo to other, then undergoes binary fission |
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Type of reproduction
( Endospore ) |
- Spore formation
- Allows bacterai to survive unfavourable conditions - Spore is dorment stage, When conditions improve, Bacteria lose endospore coat and begin to divide normally |
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Bacteria can cause many human diseases
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Lyme disease
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