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Micro Fungi
Dr. O Test 3 Chapter 12
| Question | Answer |
|---|---|
| Fungi | Ubiquitous, chemoheterotrophic, chitin cell walls, grow in high concentrations of sugar, salt, and acids, moist environments, optimal-20 to 30 C and ph 5.0 and lower |
| Saprophytes | Digest dead organic matter |
| Parasites | Digest tissues from other living organic matter |
| Facultative parasites | Digest both living and dead organic matter |
| Deuteromycota | Imperfect Fungi, no sexual stage, includes penicilin |
| Yeast | Single celled |
| Mold | Multicellular, single filament known as hyphae, collection of hyphae known as mycelium |
| Dimorphic | Either yeast cells or mycelia depending on environment (temp), disease causing fungi are mainly this |
| Mycoses | Fungal diseases aka allergic reactions, long term=farmer's lung |
| Fungal toxin | Poisonous rye smut=Ergot, can be used to control uterine bleeding, assist in child birth, and relieve migraines |
| Carcinogenic toxin | Arpergillus produces aflatoxin which is present in moldy food (grains/peanuts), associated with liver cancer |
| Histoplamosis | Spelunker's disease, agent=Histoplama capsulatum |
| Coccidioidomyscosis | Valley fever, agent=Coccoidioides immitis |
| Other human fungal disease | Ring worm and athlete's foot |
| Candida albicans | Causes candidiasis, oral thrush=cracks in corners of mouth and white patchs on lips, tongue, palate, and inside cheeks, vulvovaginitis=thick, white cheesy discharge, pruritis |
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