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1

Are fungi classified as eukaryotic or prokaryotic?

eukaryotic

2

what is the structural element that comprises a fungus?

hyphae

3

which class of fungi has non-septate mycelium?

zygomycetes

4

why are certain fungi classified as "Fungi Imperfecti"?

because it was once thought they didn't sexually reproduce (perfect cycle is a reproducing one)

5

how does the function of reproductive mycelia differ from that of vegetative mycelia?

Veg. anchor fungus to the substrate (below surface) also have a digestive enzyme rep. project above the surface have spores

6

to which class do most pathogenic fungus belong too?

deuteromycetes

7

what term best describes the nutritional characteristics of fungi?

saprotrophic

8

are fungi aerobic or anaerobic

aerobic

9

what is the best single medium for the primary isolation of fungi?

sabouraud's with dextrose

10

what is the purpose of corn meal agar?

nutritionally deprive organisms so sporulation (candida albicans)

11

how long should routine fungal cultures be held before being discarded?

4 weeks

12

what three things does the mounting medium lactophenol cotton blue do?

preserve fungal cultures reduce contamination of environment stain the hyaline fungal structures

13

when a systemic mycosis has spread to various organs, what term is used to describe it?

disseminated or systemic

14

what organism is best described as a thick-walled yeast cell with buds attached by a broad base?

blastomyces

15

which systemic fungus is always a yeast? (i.e. not diphasic)?

Cryptococcus neoformans

16

how is histoplasmosis acquired?

inhalation of spores and fungus is usually free living

17

name the five spcies of dimorphic (diplasic) fungi

blastomyces dermatididis histoplasma capsulatum paracoccidiodes braziliensis sporothrix schenckii coccidiodes imitis

18

which systemic fungus produces thick-walled yeast cells with multiple buds in tissue?

paracoccidiodes braziliensis

19

which fungus can be observed as a non-budding, thick-walled spherule containing endospores in a direct smear from the body?

coccidiodes imitis

20

which fungus produces spiny, tuberculate macrocondidia when cultured, but in the body can be seen as intracellular , yeast-like cells with a large vacuole in the cells of the RE system?

histoplasma capsulatum

21

cryptococcosis is usually seen as a disease of which body system?

pulmonary

22

which systemic fungus is the most fastidious (difficult to grow) in the laboratory?

histoplasma capsulatum

23

what systemic fungus causes San Jacquain Valley Fever?

coccidiodes

24

which systemic fungus causes South American blastomycoses?

paracoccidiodes braziliensis

25

which stain is best to use to demonstrate Cryptococcus neoformans in CSF?

india ink

26

which systemic fungus is endemic in Piedmont NC and can produce a primary pulmonary infection or a primary skin infection which resembles ringworm?

blastomyces dermatididis

27

which systemic fungus produces chains of arthrospores and can be confused with the saprophytic fungus geotrichum candidum?

coccidiodes

28

what is the macroscopic appearance of sporothrix scheneckii at 37 degrees?

Yeast: creamy white/tan smooth colonies

29

list several species of dematiaceous fungi

cladosporium phialophora fonsecaea

30

which subcutaneous infection produces yeast-like brown cells in clusters in the body?

chromomycosis