PARASITOLOGY EXAM QUESTIONS WITH CORRECT
ANSWERS
Pathognomic for G. lamblia and the stage it is found in -- Answer ✔✔ Ventral sucking
disk-trophozoite
Protozoa have an undulating membrane -- Answer ✔✔ Trichomonas & Trypanosoma
What does D. fragilis have in common with T. vaginalis -- Answer ✔✔ Neither has a
cyst form
Flagellate can be a pathogen of the small intestine -- Answer ✔✔ Giardia
Intestinal flagellate trophozoite has a sucking disc, 2 nuclei, 8 flagella, and an axostyle --
Answer ✔✔ G. lamblia
Red and white blood cells in stool specimens are characteristic of -- Answer ✔✔
Bacillary dysentry
,A pear shaped flagellate with jerky motility that is found in a urine specimen is identified
as -- Answer ✔✔ T. vaginalis
Eighty percent of the trophozoite of D. fragilis have -- Answer ✔✔ 2 nuclie
The only bilaterally symmetricl protozoan -- Answer ✔✔ Giardia
Is the intracellular form of blood and tissue flagellates -- Answer ✔✔ Leishmanial
Is the cause of African sleeping sickness -- Answer ✔✔ Trypanosoma
Is the vector of African sleeping sickness -- Answer ✔✔ Tsetse fly (Glossina)
Species of Trypanosoma is the cause of Chagas' Disease -- Answer ✔✔ Cruzi
The extracellular form of Trypanosoma is a slender organism characterised by an
undulating membrane and a free flagellum that arises -- Answer ✔✔ Posteriorly from
the kintoplast
Trypanosoma cruzi transmitted -- Answer ✔✔ Bite of reduvid bug
A chagoma is a lesion seen in infections with -- Answer ✔✔ Trypanosoma cruzi
Organism is the cause of kala-azar -- Answer ✔✔ L. donovani
, Is the laboratory diagnosis of L. donovani, which is the preferred specimen in which to
find Leihman-Donovan bodies -- Answer ✔✔ Bone marrow
A very large cyst whose double call encloses a ciliated organism with one visible nuclei
would be -- Answer ✔✔ Acquired by accident by man, since in customarily infects swine
Which of the following is the only ciliate that is pathogenic in humans -- Answer ✔✔ B.
coli
Structure used for motility of Balantidium coli -- Answer ✔✔ Cilia
Nucleus in the trophozoite of Balantidium coli is the reproductive one -- Answer ✔✔
Micronucleus
Conjugation of trophozoite of Balantidium coli never occurs -- Answer ✔✔ Same size
organisms
Definitive host (vector) to Plasmodium -- Answer ✔✔ Female Anopheles mosquito
Malarial organism presents as pale, very ameboid ring trophozoites, infecting a large pale
red blood cell with dots of hemoglobin -- Answer ✔✔ P. vivax
Malarial organisms preferentially invades reticulocytes -- Answer ✔✔ P. vivax
ANSWERS
Pathognomic for G. lamblia and the stage it is found in -- Answer ✔✔ Ventral sucking
disk-trophozoite
Protozoa have an undulating membrane -- Answer ✔✔ Trichomonas & Trypanosoma
What does D. fragilis have in common with T. vaginalis -- Answer ✔✔ Neither has a
cyst form
Flagellate can be a pathogen of the small intestine -- Answer ✔✔ Giardia
Intestinal flagellate trophozoite has a sucking disc, 2 nuclei, 8 flagella, and an axostyle --
Answer ✔✔ G. lamblia
Red and white blood cells in stool specimens are characteristic of -- Answer ✔✔
Bacillary dysentry
,A pear shaped flagellate with jerky motility that is found in a urine specimen is identified
as -- Answer ✔✔ T. vaginalis
Eighty percent of the trophozoite of D. fragilis have -- Answer ✔✔ 2 nuclie
The only bilaterally symmetricl protozoan -- Answer ✔✔ Giardia
Is the intracellular form of blood and tissue flagellates -- Answer ✔✔ Leishmanial
Is the cause of African sleeping sickness -- Answer ✔✔ Trypanosoma
Is the vector of African sleeping sickness -- Answer ✔✔ Tsetse fly (Glossina)
Species of Trypanosoma is the cause of Chagas' Disease -- Answer ✔✔ Cruzi
The extracellular form of Trypanosoma is a slender organism characterised by an
undulating membrane and a free flagellum that arises -- Answer ✔✔ Posteriorly from
the kintoplast
Trypanosoma cruzi transmitted -- Answer ✔✔ Bite of reduvid bug
A chagoma is a lesion seen in infections with -- Answer ✔✔ Trypanosoma cruzi
Organism is the cause of kala-azar -- Answer ✔✔ L. donovani
, Is the laboratory diagnosis of L. donovani, which is the preferred specimen in which to
find Leihman-Donovan bodies -- Answer ✔✔ Bone marrow
A very large cyst whose double call encloses a ciliated organism with one visible nuclei
would be -- Answer ✔✔ Acquired by accident by man, since in customarily infects swine
Which of the following is the only ciliate that is pathogenic in humans -- Answer ✔✔ B.
coli
Structure used for motility of Balantidium coli -- Answer ✔✔ Cilia
Nucleus in the trophozoite of Balantidium coli is the reproductive one -- Answer ✔✔
Micronucleus
Conjugation of trophozoite of Balantidium coli never occurs -- Answer ✔✔ Same size
organisms
Definitive host (vector) to Plasmodium -- Answer ✔✔ Female Anopheles mosquito
Malarial organism presents as pale, very ameboid ring trophozoites, infecting a large pale
red blood cell with dots of hemoglobin -- Answer ✔✔ P. vivax
Malarial organisms preferentially invades reticulocytes -- Answer ✔✔ P. vivax
