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Exam 2

Microbiology

QuestionAnswer
what is mycology? the study of fungi
describe some facts about fungi eucaryotic, chemoorganotrophs, spraophytic or parasitic heterotrophs, non-motile, non-photosynthetic, saccharophilic, acidophilic, cell wall of chitin, polysaccharides
describe some facts about yeast asexual reproduction (budding), pseudohyphae, round to oval shape, cell wall of chitin, glucan, mannan
name 5 different asexual spores sporangiospores, conidiospores, arthrospores, chlamydospores, blastospores
what is a sporangiospore? spores that are enclosed by a sporangium (saclike) and released when it ruptures
what is a conidiospore? spores that aren't enclosed by a spore-bearing sac. most common asexual spore;
what is a arthrospore? rectangular spore formed from a septate hyphae; Valley Fever; asexual spre
what is a chlamydospore? spherical conidium formed by the thickening of hyphal cells; serves a survival/resting cell; asexual spore
what is a blastospore? spore produced by budding; asexual spore
what is a phialospore? budded from a philalide (vase shaped) or <i>Sterigma</i>; asexual spore
what are 3 sexual spores? zygospores, ascospores, & basidospores
what are zygospores? develops from the union of two hyphae that have opposite mating types (+/-); sexual spore
what are ascospores? haploid spores created inside an ascus (fungal sac; sexual spore
what is Sabouraud Dextrose Agar used for? usefl for isolating fungi from mixed samples; pH 5.6; increased sugar concentraion
what are the four levels of fungal infection? superficial, cutaneous, subcutaneous and systemic
examples of superficial infections tinea vesicolor caused by <i>Malassezia furfur</i>; and piedras
Created by: ch2istine
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