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41 Cards in this Set
- Front
- Back
which part of a fungi name changes based on whether it reproduces sexual or asexually
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genus name changes - species name stays the same
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loose mucoid capsule around fungi is only important in what species
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c. neoformans
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the cytoplasmic membrane of fungi in includes what
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1. ergosterol
2. proteins anchored by GP1 |
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what crosslinking connection accounts for branching
rigid backbone |
B 1,6 glucan
B 1,3 glucan |
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endogenous fungi mean the fungi is
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associated with human or animal hosts e.g candida albicans
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exogenous fungi refer to those fungi that are
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free living, ecological niche outside of host
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absorptive heterotrophs
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fungi. require Carbon be spplied in organic form - grown in their own food using secreted enzymes
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penetrating power
produce spores polymer degrading enzyme |
hyphal growth
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"mycelial" =
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colony of hyphae and spores
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pseudohyphae
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elongated yeast
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coenocytic
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aseptate - no septa in hyphae
nuclear divisions with no cell fission |
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conidia structures
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asexual -
microconida are often infections and macroconida are good for identification |
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arthospores
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barrel shapped w/ in hypha filament
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vaccines against fungi
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no
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test where carbohydrate rich walls resist digestion and host cells are dissolved
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NaOH / KOH mount
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test which is used to reveal encapsulated yeast
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India Ink
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test which binds carbohydrates in fungal cell walls resulting in black color
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methaneamine silver
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test which binds carbohydrates in fungal cell walls resulting in red color
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PAs
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glyphosphate is most likely an anti-
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fungal drug
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the study of fungi i
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mycology
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study of fungal toxin is
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mycotoxicology
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diseases by fungi are
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mycoses
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compound found in fungal cell membranes not found in mammalian cell membranes
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ergosterol
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fungal taxonomy is based on
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morphology of sexual forms
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two structures that give rigidity to fungal cell walls
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glucan and chitin
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the outer coat of fungal cell walls that elicits Ab response is composed of
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glycoproteins
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the terms vegetative and aerial refer to
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growth w/in versus on the surface of media
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how do you distinguish fungi's "fuzzy" colonies
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morphology of spores
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four clinical categories of fungal infections
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1. superficial
2. cutaneous 3. subcutaneous 4. systemic |
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the most importatnt acquired immune defense mechanism for inhibiting fungal infections
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CMI
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do fungi have true nucleus
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yes - they are in the eukarya domain
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the part of the fungi cell wasll that allos the wall to expand and contract and prevent lysis
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glucan polymers
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high mannose type
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the cell wall glycoproteins in fungi
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Antibody response to fungi is directed against
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carbohydrate proteion of glycoproteins in fungi
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candida albicans is part of the normal flora of
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the GI tract
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which are more tolerant to acid, fungi or bacteria
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fungi
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asexual spre
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conidia
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the most common fungal infections are caused by
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dermatophytes
originated in soil but probably now just inhabit humans. they utilize dead cornified appendages of host |
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these types infections usually take a while to develop as fungi is adapting from soil saprophyte to the host. usually happens via traumatic implantation
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subcutaneous infection
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primary fungal pathogens
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in non-immunocompromised host
inhaled from enviroment at spore grow in humans as yeast person to person transmission does not occur e.g yeast infection? |
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one manifestation fo the CMI response to fungus is
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granuloma formation
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