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25 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Bacteria |
A unacellular organism that does not require living tissue in order to survive |
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Cell wall |
Outer boundary which is either gram-positive or gram-negative (some meds work better on one) |
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Cell membrane |
Located within the cell wall; regulates movement of materials in & out of the cell - semipermiable membrane |
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Capsule (cell slime layer) |
Located outside of the cell wall of some bacteria; provides added protection |
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Cytoplasm |
Contains DNA & RNA |
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Flagellae |
Often Attached to the cell wall to allow mobility |
Flags on a racetrack allow mobility |
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Toxins |
Some bacteria secrete toxic substances |
Toxic |
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3 Major Groups of Bacteria |
1. Bacilli 2. Spirals 3. Cocci |
BSC |
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Bacilli |
Rod shaped bacteria |
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2 types of Bacilli |
E. Coli Bacillus anthracis (anthrax) |
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E. Coli |
Causes Salamanila & sepsis |
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Bacilli Anthracis (anthrax) |
Causes vomiting, bleeding, & respiratory distress |
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Spirals bacteria |
Spirals shaped bacteria |
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Treponema pallidum |
Bacteria that causes syphalysis |
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Cocci Bacteria |
Round bacteria |
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Diplococci |
Bacteria found in pairs Ex: pneumococcus causes pneumonia |
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Streptococci |
Bacteria found in chains |
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Staphylococci |
Clusters of bacteria Staphylococcus aureus: causes skin infections |
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Viruses |
Intra-cellular parasites that require a living Host cell for replication. Basic structure protein coat that surrounds either dna or ran Ex: herpesvirus (herpes, chicken pox), retrovirus (hiv) |
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Transmission of Infectious Agents |
Transmission between reservoir & new host |
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Reservoir |
The source of Infection; may be a person with an obvious active infection, or a person whonis asymptomatic, an animal, or contaminated water, food, soil, or equipment |
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Indirect contact |
Transmission of Infectious agents that involves an intermediary (food or contaminated inanimate object) |
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Droplet transmission |
(Oral or respiratory) transmission of an infective agent that occurs when salivary or interespretory compressions containing pathogen are expelled from the body Ex: TB bacteria |
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Aerosol transmission |
Small particles from the respiratory tract travel through the air & infects a new host, who inhails them. |
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Vector-borne transmission |
When an insect/animal serves as an internary host Ex: milaria |
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