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15 Cards in this Set
- Front
- Back
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Aseptic Technique
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The ability to obtain pure, uncontaminated cultures
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How many domains of life are there?
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3 Domain Archaea, Bacteria, Eucarya
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Domain Archaea
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Prokaryotic.
3 Divisions 1) Methanogens 2)The extreme halophiles 3) The Hyperthermophiles |
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Domain Bacteria
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Prokaryotic, Seldom photosynthetic
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Domain Eucarya (Group 1)
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All have nuclei
Group 1 Anaerobes, 70S Ribosomes, No Golgi, No MT |
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Domain Eucarya (Group 2)
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Group 2:
Aerobes, 80S ribosomes, Golgi, Mt, Chloroplasts King Animalia |
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Bacteria
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Organisms that are the most widely distributed, the simplest in morphology, the smallest in
size, the most difficult to classify, the hardest to identify |
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Ubiquitous
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found all over and in every environment such as soil, water, on plants, on
animals, or humans |
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3 Major Bacterial Morphologies
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Rod (bacillus)
Spherical (cocci) Helical and curved |
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Bacterial Size
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0.5μm to 2 μm
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Other Bacterial Characteristics
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Difficult to classify and identify due to the varied nature of all the bacteria
Prokaryotic and belong to the Kingdom Monera (share it with the cyanobacteria) Generally non-photosynthetic – do not have chlorophyll a which is found in plants, have bateriochrolophyll |
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Fomite
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any object, surface, or even a body part
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what does it mean that an organism is free living?
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do not reside on a particular host
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what is a reservoir
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any area where a microbe resides and serves as a potential source of infection
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What are opportunisitic pathogens?
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they are normally harmless but can cause infection when given the chance.
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