Term
| What are bacteria and archaea (primarily)? |
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Definition
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Term
| What did the history of life begin with? |
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Definition
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Term
| how many years ago did life begin? |
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Definition
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Term
| How many years did prokaryotic unicells live alone? |
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Definition
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Term
| Who are the dominant creatures on earth? |
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Definition
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Term
| Why are the prokaryotes the most dominant creatures on earth? 4 things |
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Definition
| they have biochemical diversity, a range of habitats, resistance to extinction, and biomass |
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Term
| Where do prokaryotes get their energy from? |
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Definition
| nearly every energy-producing chemical reaction on the earth |
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Term
| What type of "ophile" are prokaryotes? |
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Definition
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Term
| Who are the shapers of the global ecology? How? |
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Definition
| Prokaryotes, they are responsible for tailoring the biosphere |
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Term
| How do prokaryotes shape the biosphere? 2 things |
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Definition
| create oxygen, recycle carbon & mineral nutrients |
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Term
| The vast majority of prokaryotes are pathogenic/non-pathogenic |
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Definition
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Term
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Definition
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Term
| What is the significance of the prokaryotes smallness? |
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Definition
| consequence for biological properties and diffusion rates |
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Term
| What happens to surface area as the cell gets larger? |
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Definition
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Term
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Definition
| less than 1 micrometer diamter |
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Term
| What is a giant bacteria? |
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Definition
| epulopiscium fishelsonii (paramecium) 80x600 |
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Term
| What litte bacteria actually give live birth? |
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Definition
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Term
| What do we use to classify bacteria? |
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Definition
| phenotype and growth characteristics |
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Term
| What are some characteristics of bacteria?5 |
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Definition
| motility, colony morphology, atmospheric requirements, nutritional requirements, biochemical & metabolic activities (metabolic diversity) |
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Term
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Definition
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Term
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Definition
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Term
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Definition
| wide range of cell shapes found in a sample |
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Term
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Definition
| Purple and thick layer of peptidoglycan |
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Term
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Definition
| Red, thin layer of peptidoglycan |
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Term
| What are the two main stains that we use? |
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Definition
| gram stain and acid-fast stain |
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Term
| How do we identify colony morphology? |
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Definition
| Size, color, overall shape, elevation, appearance of margin, hemolysis reaction |
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Term
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Definition
| strep will turn the blood agar red |
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Term
| What is a blood agar called? |
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Definition
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Term
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Definition
| red blood cells are destroyed |
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Term
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Definition
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Term
| Anaerobes are... 2 things |
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Definition
| aerotolerant and oblicate |
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Term
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Definition
| requires higher levels of CO2: 5-10% CO2 |
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Term
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Definition
| derives all C requirements from the principle carbon source |
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Term
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Definition
| requires one or more organic nutrients in addition to the principe C source |
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Term
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Definition
| heavily auxotrophic: it is difficult to grow--needs richer bacteria (agar I think, not in notes) |
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Term
| Biochemical and metabolic activity: 5 things |
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Definition
| genotype vs phenotype, phenotypic characteristics, biochemical pathways, presence/absence of enzymes, differential culture media |
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Term
| What does differential culture media refer to? |
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Definition
| having a selective medium |
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Term
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Definition
| obligate intracellular pathogens (must grow inside the cel) and has arthropod vectors |
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Term
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Definition
| obligate intracellular parasite; energy parasites: can't make their own ATP! |
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Term
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Definition
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Term
| What is the difference between archea and prok lipid composition? |
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Definition
| prokaryotes have a ether lipid structure |
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Term
| TF some proks have bacteria-like walls |
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Definition
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Term
| which class has "many extremophiles"? |
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Definition
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Term
| What is more closely related to eukaryotes? archaea or bacteria? |
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Definition
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