Intestinal and Luminal Protozoa:

Question 1

– infective stage

Answer 1

Cyst

Question 2

– vegetative stage

Answer 2

Trophozoite

Question 3

only tissue invader

Answer 3

Entamoeba histolytica

Question 4

Entamoeba histolytica

——-can survive weeks in moist environment

Answer 4

Cysts

Question 5

Size of cyst: <10 micra –

Answer 5

E.hartmanni

Question 6

Size of cyst

> 10 micra –

Answer 6

E. histolytica, E. dispar, E. moshkovskii

Question 7

when reporting :

indistinguishable

Answer 7

• E. histolytica / E. dispar / E. moshkovskii

Question 8

•________ (pathogenic)

•________ (nonpathogenic)

Answer 8

E. histolytica

E. dispar / E. moshkovskii

Question 9

Commensal Amebae

Answer 9

Entamoeba hartmanni
Entamoeba coli
Entamoeba polecki
Endolimax nana
lodamoeba butschlii

Question 10

Giardia intestinalis orr

Answer 10

Cercomonas intestinalis

Question 11

Discovered by French scientist: (2), it was called Giardia lamblia

Answer 11

Dr. F. Lambl
Dr. Giard

Question 12

Trichomonas vaginalis

HABITAT:

Answer 12

vagina and prostate gland

Question 13

Trichomonas tenax

• Found in the

Answer 13

oral cavity

Question 14

Balantidium coli

•Trophozoites live in the_____ of the host animals.

Answer 14

large intestine

Question 15

Balantidium coli

•They are covered in____ and have boring or rotary motility.

Answer 15

cilia

Question 16

• Often mistaken as an amoeba
• Very refractile
Spherical / ovoidal
• One large central body

Answer 16

Blastocystis hominis (5-20 micra)