Flagellates & Ciliates (Giardia lamblia)

Question 1

Refers to parasitic protozoa with whip like flagella

Answer 1

Flagellates

Question 2

How do flageallates multiply?

Answer 2

Binary fission

Question 3

Name the phylum , subphylum and class for flagellates?

Answer 3

❖ Phylum : Sarcomastigophora
❖ Subphylum : Mastigophora
❖ Class : zoomastigophora

Question 4

These are flagellates found in blood and tissues? and have 1 flagellum

Answer 4

Hemoflagellates

Question 5

These are flagellates dwelling in the alimentary tract and urogenital tract; have multiple flagellum

Answer 5

Lumen dwelling flagellates

Question 6

TRUE or FALSE: lumen-dwelling flagellated are MOSTLY PATHOGENIC

Answer 6

FALSE: most are non pathogenic
commensals except:
o Giardia lamblia
o Trichomonas vaginalis

Question 7

Name of giardia (found in duodenum)?

Answer 7

G. duodenalis

Question 8

Name of giardia (found in intestine)?

Answer 8

G. intestinalis

Question 9

Shape of G. lamblia intestinalis?

Answer 9

shape of a tennis racket; dorsally convex; and bilaterally symmetrical

Question 10

What is the basic structure of G. lamblia?

Answer 10

1 pair of nuclei
4 pairs of flagellates
Blepharoplast (is the starting point of the flagellum)
1 pair of axostyle

Question 11

What is the track taken by G. lamblia?

Answer 11

Enter duodenum [multiply/germinate] -> jejenum [feed mutliply]

Question 12

Clinical manifestations of G. lamblia intestinalis?

Answer 12

Diarrhea and abdominal pain

Question 13

This morphological stage of G. lamblia is pear/heart shaped and symmetric?

Answer 13

Trophozoite

Question 14

How many nuclei - trophozoite stage (G. intestinalis)? How many flagellates?

Answer 14

2; 8

Question 15

Geographic distribution of G. intestinalis?

Answer 15

Cosmopolitan

Question 16

Main food source - G. intestinalis?

Answer 16

Glucose

Question 17

How many nuclei does the trophozoite stage of G. intestinalis have? does it have a central karyosome?

Answer 17

2; YES

Question 18

What does ax mean? where is it located/what does it do?

Answer 18

axonemes (Ax) - fibrils running the length of the parasite

Question 19

These are pair of curved rod-shaped structures which lie posterior to the nuclei

Answer 19

Median bodies

Question 20

This sp. exhibit a distinctive erratic
twisting motion, sometimes
compared to that of a
falling/tumbling leaf

Answer 20

G. intestinalis

Question 21

This structure of G. intestinalis plays a role in the attachment of the trophozoite to the intestinal epithelium?

Answer 21

Adhesive disks

Question 22

popular name for giardiasis?

Answer 22

Beaver fever

Question 23

Clinical Features (which stage of infection): intestinal uneasiness?

Answer 23

Prodromal

Question 24

This laboratory diagnosis is done via taking a stool ova?

Answer 24

Stool micr. examination

Question 25

This diagnostic method uses monoclonal bodies

Answer 25

Fluorescent method

Question 26

Give 2 medication as part of treatment for G. intestinalis?

Answer 26

Metronidazole & Quinacrine hydrochloride

Question 27

This trichomonas species is found in the tar2 and around the gums? NON PATHOGENIC

Answer 27

T. buccalis (T. tenax)

Question 28

This trichomonas species is found in the large intestine?

Answer 28

T. hominis

Question 29

This trichomonas species is associated with human pathology and disease?

Answer 29

T. vaginalis