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Cards In This Set
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The loose intertwined network of basic structural units of the moulds which penetrates the substrate from which it obtains the necessary nutrients for growth is called what?
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mycelium
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What is one of the first and most obvious characteristics of the Zygomycetes in the laboratory?
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Rapid growth
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The negative stain shown in the image below demonstrates which of the following characteristics?
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Encapsulated cells
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This organism is a lipophilic yeast?
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Malassezia furfur
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What is the most likely identification of the following organism, based on the microscopic morphology of the below:
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Penicillium sp
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The clinical entity known as white piedra is caused by which of the following organisms?
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Trichosporon spp
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A mould that has a similar conidiophore morphology to that of Penicillium sp. but is not a common cause of opportunistic infections is?
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Paecilomyces sp
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Best definition of a fungus?
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A group of non-motile eukaryotic organisms that have definite cell walls, are devoid of chlorophyll, and reproduce by means of spores and conidia
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The structure shown in the image below was found when examining a yeast culture for morphology under the microscope. The structure is best described as which of the following?
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Arthroconidia
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Best definition for “mycetoma?”
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Chronic granulomatous disease of feet with enlarged nodules, sinus drainage, bone destruction, but no systemic involvement
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Foot cells, swollen vesicles, hyaline septate hyphae, and uniseriate or biseriate conidiation are all characteristic of what organism?
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Aspergillus sp.
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Differentiation of Zygomycetes is most often based what characteristics?
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Presence and location of rhizoids and type of sporangiophore
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What term is best described as the process of reproduction in yeast that begins with a weakening and outpouching of the yeast cell wall and then formation of a cell wall septum between the mother and daughter yeast cells?
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budding
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What term best describes the asexual reproductive structures of moulds?
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Conidia
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The following mould causes a woods lamp positive dermatophytic infection. The most likely identification of this organism is which of the following?
(Tease prep stained with lactophenol cotton blue)  |
Microsporum canis
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