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Ch 13
introduction to bacteria
| Question | Answer |
|---|---|
| What are the ____ of living organisms | Bacteria are the most diverse type of living organisms |
| How many ways are there to classify bacteria? What is the best way to start classifying bacteria | differential tests that start off broad and progressively get more specific until the groups are separated into genera |
| What is genera | classification ex: animalia, Protozoa, fungi, archaea, plantae, bacteria, and virus |
| can genera be differentiated | yes, more additional test would |
| What would all the differential test form | a dichotomous key |
| What can a dichotomous key be useful for | a way to learn the major group characteristics of bacteria |
| How many differential test does it take to narrow down the genus and species identity? | few to over a dozen tests |
| How many major pathogenic bacteria genera exist | 40 |
| What is the first step of differentiating pathogenic bacteria | performing a gram stain |
| What does a gram stain do | determines cell morphology and gram (+/-) |
| name some limitations that exist for gram staining | |
| What is the second method of differentiating pathogenic bacteria? | determine other attributes |
| What are some other attributes | differential staining, biochemical properties, ability to grow on selective media, growth requirements, antibiotic sensitives, -pathogenicity characteristics, motility, genetic analysis |
| what do biochemical properties do | have ability to carryout specific reactions |
| What are examples of growth requirements | oxygen requirements, temperature requirements, pH requirements, nutrient requirements |
| how will major pathogenic genera be characterized | structure, physiology, species, epidemiology, pathogenesis, disease caused, diagnosis, treatment, prevention |
| structure | the morphology (macroscopic and microscopic) |
| physiology | characteristics of the bacteria l |
| species | pathogenic species are listed and characterized individually |
| epidemiology | where the bacteria are commonly found and how it is transmitted |
| pathogenesis | the method by which the bacteria causes disease |
| virulence factors | special features that enables pathogenicity |
| disease caused | unique and/or nonspecific morbidities the pathogens causes |
| diagnosis | how the bacteria are identified from patient samples |
| treatment | things that can lessen the effect of the pathogen |
| prevention | how infection by the organisms can be avoided |
Created by:
Acrob89
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