Microbiology- Mycology and Virology Flashcards Preview

Med Lab Tech Fall 2016 > Microbiology- Mycology and Virology > Flashcards

Flashcards in Microbiology- Mycology and Virology Deck (65)
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1

True or False:

Fungi resemble plants in that both contain chlorophyll

False

2

A patient's sputum contains a dimorphic fungus. If the sputum is put on a slide and a coverslip is added, what would you expect to observe--- hyphae or yeast?

Yeast because the sample is a body fluid specimen

3

What are knots of twisted hyphae called?

Nodular organs

4

What type of reproductive structure is observed?

Macroconidium

5

True or False:

Arthroconidia reproduce by fragmentation

True

6

True or False:

Chlamydospores of Candida albicans will germinate to form new conidia when mature

False

7

The conidiogenous cell in the picture is a(an):

a. Phialide

b. Sporangium

c. Poroconidium

d. Annellide

e. Chlamydoconidium

d. Annellide

8

Blastoconidia that have elongated are termed:

a. Mother cells

b. True hyphae

c. Chlamdospores

d. Conidia

e. Pseudohyphae

e. Pseudohyphae

9

Name the structures

A. Sporagiospore

B. Columella

C. Sporangiophore

10

Label the picture

Mature zygosporangium

11

What is the picture of?

Blastoconidia

12

Label the picture

Racquet hyphae

13

Label the picture

Macroconidia

14

What is this a picture of?

Verrucose

15

Ascospore

16

Vegetative hyphae

17

Sessile chlamydoconidia

18

Granular

19

Dimorphism

20

Basidiospores

21

Arthroconidia

22

A patient is seen by his physician for a hard, nonmoving nodule below the skin on his right index finger. There are no other symptoms. The infection that this patient is most likely presenting is:

a. Superficial

b. Cutaneous

c. Subcutaneous

d. Systemic

c. Subcutaneous

23

This fungus produces (Phialoconidia/annelloconidia). It has no known sexual stage; thus this figure must represent a(n) (Anamorph/Teleomorph) and is classified in the phylum (Basidiomycota/Deuteromycota)

Phialoconidia

Anamorph

Deuteromycota

24

True or False:

With a sputum culture, one would expect to observe growth of throat organisms

True

25

Why is a urine specimen collected upon rising in the morning?

As a way of incubating and allowing a better chance to grow anything

26

The fungal organism most commonly found in vaginal infections is:

a. Cryptococcus neoformans

b. Coccidioides immitis

c. Torulopsis glabrata

d. Candida albicans

e. Geotrichum candidum

d. Candida albicans

27

True or False:

Do not disinfect skin or nail areas with alcohol before taking scrapings, as the disinfectant will kill any pathogenic fungi you want to recover

False

28

True or False:

Typically fungal infection is so overwhelming by the time it is isolated from blood or cerebrospinal fluid, there is no need to concentrate the specimen

True

29

True or False:

Granules from subcutaneous lesions only respresent necrotic material and therefore should be disregarded

False

30

Why is it important to perform a direct mount examination on every specimen?

Allows you to send out an immediate preliminary report to the physician

You will know whether or not to innoculate special media