MMSC 438 EXAM 4 QUESTIONS & ANSWERS
1. A 15-year-old high school football player presents with symptoms consis-
tent with tinea pedis. Microscopic examination of skin scrapings reveals cig-
ar-shaped macroconidia and coiled hyphae. The most likely causative agent is
A. Candida albicans
B. Epidermophyton floccosum
C. Microsporum canis
D. Trichophyton mentagrophytes: D. Trichophyton mentagrophytes
2. This contaminant is the most common cause of mycotic keratitis and a
signif- icant cause of infection in bone marrow transplant patients. It
produces
A. Single "light bulb" shaped conidia and arthroconidia
B. Pigmented poroconidia in chains
C. Banana-shaped macroconidia
D. Thick-walled, rough macroconidia: C. Banana-shaped macroconidia
3. A compound found in fungi that offers the ability to be visualized with calco-
fluor white is
A. Chitin
B. Ergosterol
C. Mitochondria
D. Ribosomes: A. Chitin
4. All of the following are characteristics of yeast EXCEPT
A. Eukaryote cell
B. Produce aerial mycelium
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, C. Reproduce asexually by budding
D. Unicellular: B. Produce aerial mycelium
5. The term phaeoid (dematiaceous) fungi refers to
A. Dark-colored hyphae
B. Hyaline mycelium
C. Rapid growers
D. Reproduction by conidiogenesis: A. Dark-colored hyphae
6. A young child from Africa, visiting relatives in Delaware, presents to an urgent
care center with gray patches on the scalp and hair loss. The physician uses
a long wave UV light to demonstrate fluorescence of the scalp. You should
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1. A 15-year-old high school football player presents with symptoms consis-
tent with tinea pedis. Microscopic examination of skin scrapings reveals cig-
ar-shaped macroconidia and coiled hyphae. The most likely causative agent is
A. Candida albicans
B. Epidermophyton floccosum
C. Microsporum canis
D. Trichophyton mentagrophytes: D. Trichophyton mentagrophytes
2. This contaminant is the most common cause of mycotic keratitis and a
signif- icant cause of infection in bone marrow transplant patients. It
produces
A. Single "light bulb" shaped conidia and arthroconidia
B. Pigmented poroconidia in chains
C. Banana-shaped macroconidia
D. Thick-walled, rough macroconidia: C. Banana-shaped macroconidia
3. A compound found in fungi that offers the ability to be visualized with calco-
fluor white is
A. Chitin
B. Ergosterol
C. Mitochondria
D. Ribosomes: A. Chitin
4. All of the following are characteristics of yeast EXCEPT
A. Eukaryote cell
B. Produce aerial mycelium
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14
, C. Reproduce asexually by budding
D. Unicellular: B. Produce aerial mycelium
5. The term phaeoid (dematiaceous) fungi refers to
A. Dark-colored hyphae
B. Hyaline mycelium
C. Rapid growers
D. Reproduction by conidiogenesis: A. Dark-colored hyphae
6. A young child from Africa, visiting relatives in Delaware, presents to an urgent
care center with gray patches on the scalp and hair loss. The physician uses
a long wave UV light to demonstrate fluorescence of the scalp. You should
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14
