Protozoa: Ciliates and Coccidia

Question 1

Balantidium coli (troph) Ciliate

Answer 1

rotary/ boring motility
macronucleus that is kidney shaped.
micronucleus that is circular
contains vacuoles, cytostomes, cillia

Question 2

Balantidium coli (Cyst) Ciliate

Answer 2

macronucleus that’s kidney shaped
spherical micronucleus (not always visible)
has vacuoles
cilia is between double cyst wall

Question 3

Cryptosporidium parvum (Coccidia)

Answer 3

Oocyst
roundish
4 small sporozoites surrounded by thick cell wall
4-6um in diameter
MODIFIED ACID-FAST to diagnose

Question 4

Cyclospora (Coccidia)

Answer 4

Oocyst
roundish/oval
2 sporocysts with 2 sporozoites
8-10um in diameter
MODIFIED ACID FAST to diagnose

Question 5

Isospora belli (Coccidia)

Answer 5

Oocyst
Oval
2 layered smooth cell wall
2 sporocysts with 4 sporozoites