Flagellates & Ciliates (Balantidium Coli)

Question 1

The only human pathogen from the ciliate
phylum

Answer 1

B.coli

Question 2

parasitic stage responsible for transmission of balantidiasis

Answer 2

Cysts

Question 3

B. coli cyst shape? Structure?

Answer 3

Spherical; surrounded by vacuoles - contains Macro and micro nucleus

Question 4

This morph. phase of B. coli is covered in longitudinal rows of cilia, non-infective, have boring or rotary motility, etc.

Answer 4

Trophozoite

Question 5

Disease caused by B. coli?

Answer 5

Balantiadiasis

Question 6

Habitat of B. coli?

Answer 6

large intestine esp. the caecum

Question 7

Incubation period B. coli?

Answer 7

4-5 days

Question 8

Duration of Illness? B. coli

Answer 8

1 Week

Question 9

If left untreated… it may cause a) abdominal bleeding leading to? b) persistent diarrhea leading to?

Answer 9

a) death
b) dehydration/fluid loss

Question 10

How do trophozoites invade (B. coli)?

Answer 10

HYALURONIDASE ENZYME

Question 11

Explain how does B. coli infect the intestinal mucosa….

Answer 11

Hyaluronidase enzyme -> degrade intestinal mucosa -> flask shaped ulcers