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15 Cards in this Set
- Front
- Back
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4 main types of Infectious Agents |
Bacteria (prokaryotes) Parasites (Eukaryote) Fungi (Eukaryotes) Viruses |
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Parasites |
-asexual/ sexual reproduction -various hosts -plasmodium falsiparum- causes malaria -Giardia lamblia- intestinal infection spreads by binary fission
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Fungi |
-Infections/ subcutaneous, superficial, systematic -most are saprophytes (contain nrg from animal and veg. decomp. -dandruff Penicillium chrysogenum- produces antibiotic penicillin
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Planktonic bacteria |
grows in small aggregates or ind. cells
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Biofilms |
microcolony made of growth. -found in GI tract and cuts - helps maintain balance -Infections- Cystic Fibrosis |
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Chagas Disease |
parasite infection. lives outside RBSs, chronic, caught from kissing bug |
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Superficial Fungi |
-Microsporum spp. - ringworm -Trichophyton/ Epidermophyton spp.- athlete's foot
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Subcutaneous Fungi |
Sporothrix schenckii- sporotrichosis |
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Used Fungi |
Saccharomyces cerevisiae - bread Saccharomyces calsbergensis- beer/wine Aspergillus niger- citric acid |
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Viruses |
"Intracellular parasite"- don't contain enzymes needed to copy their own nucleic acid. |
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Lysogenic Virus |
integration of nucleic acid into host cell's cytoplasm
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Lytic Virus |
lyse the host cell. Results in destruction of cell. |
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Bacteriophages |
viruses that only infect bacteria. Very specific |
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endolysins |
virally encoded enzymes that act on cytoplasmic membrane and then peptidoglycan layer |
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prions |
types of proteins w/ no nucleic acid. Interacts with other proteins, taking away function and turning the, into prions. Very resistant. |
