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16 Cards in this Set
- Front
- Back
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Two morphological forms of protozoa |
Tropozite Cyst |
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Protozoa reproduce how? |
All reproduce asexual Some sexually |
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Protozoa metabolism |
Most aerobic Few faculative anaerobe |
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Protozoa grows naturally where |
Water dwellers Surface of plants, water surfaces like lettuce Soils |
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If lettuce not washed well protozoa can cause |
Diarrhea |
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Function of cyst phase |
When sheds from host uses cyst for protection from harsh environments until another human comes along and ingests the cyst form |
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Function of trophozoite |
Actively feeding, metabolizing, and growing stage of protozoa |
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Infective form meaning |
How do you get these diseases example the cyst causes the infection. |
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Which causes infection the cyst or tropozite |
Cyst is the infective form |
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What organism causes vaginitis |
Trichomones vaginalis |
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Frank pathogen organism in protozoa |
Trichomonas vaginitis because its normal flora in men but not for women transmitted sexually usually |
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Even though they are single celled organisms some protozoa are capable of sexual reproduction t or f |
True |
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The gram stain is most important first step in laboratory identification of bacteria most of the time. Exception is when lab is trying to identify an enter pathogen. Why? |
We already know its gram negative and a gram stain won't give us the identification of an enteric negative gram bacteria we have to do a selective and differential stain to get knowledge of the specific enteric bacteria spp E coli has 50 spp would need to do phage or serotyping test to isolate |
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Over half of the worlds population is infected with eukaryotic pathogens |
True |
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What enteric bacteria ferment lactose |
E coli |
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Arthropod borne |
When a pathogen such as bacteria is transmitted from its natural habitat via arthropod vectors flies mosquitoes ticks lice |
