Download Q.1

‫بسم هللا الرحمن الرحيم‬
‫‪Parasitology Final Exam‬‬
‫‪Department of Biology‬‬
‫‪Date: 13 /1/ 2003‬‬
‫‪Time: 120 minutes‬‬
‫اإلسم‪----------------------------- --------------- :‬‬
‫الرقم الجامعى‪---------------------------- --------:‬‬
‫‪TOTAL‬‬
‫‪Q.6‬‬
‫‪Q.5‬‬
‫‪Q.4‬‬
‫‪Q.3‬‬
‫‪Q.2‬‬
‫‪Q.1‬‬
‫‪Question No.‬‬
‫‪Marks‬‬
‫‪/94‬‬
‫‪10‬‬
‫‪10‬‬
‫‪15‬‬
‫‪22‬‬
‫‪13‬‬
‫‪24‬‬
‫نسأل هللا لنا ولكم التوفيق و النجاح‬
‫الدكتور‪ /‬عدنان ابراهيم الهندى‬
1
Answer the following questions
Q-I-Select the correct response:
(24 marks)
1. All of the following are true for Diphyllobothrium latum except:
a. The adult stage present in small intestine of man, cat and fox.
b. The eggs are laid immature and operculated.
c. Cyclops is the first intermediate hosts.
d. The disease is known as fish worm infection.
e. The infective stage is plerocercoid larva.
f. The diagnosis is by adhesive tape (Scotsh tape).
2. Cysticercus bovis is a specific larval stage for:
a. Trichinella spiralis
d. Trichuris trichiura
b. Taenia saginata
e. Non of these.
c. Taenia solium
3. Casoni test is used for the diagnosis of:
a. Amoebiasis
b. Leishmaniasis
d. Trypanosomiasis
c.Giardiasis
f. non of these
e. Hydatis cyst
4. Quartan malaria is caused by:
a. Plasmodium vivax
c. Plasmodium falciparum
b. Plasmodium malariae
d. Plasmodium ovalae
5. In the case of infection with Taenia solium, man may acts as
intermediate host by the following except:
a. ingestion of egg
b. Autoinfection
c. antiperistalsis, where the segments pushed to the stomach
d. Larva penetrate bare foot.
6. Hydatid cyst is characterized by the following except:
a. Size varies from pin’s head to a child head.
b. It contains cystic fluid in which hang the broad capsules and daughter cysts.
c. Have true capsule
d. Have false capsule
e. Have bothria
7. The most main symptom of Hymenolepis nana is:
a. Abdominal pain
d. insomnia
b. children nervousness.
e. All of these
c. diarrhea
f. Non of these.
8. The gynaecophoric canal is found in:
a. Giardia lamblia cyst
c. Enterobius vermicularis female
e. Schistosoma mansoni male
b. Entamoeba histolytica trophozoite
d. Schistosoma haematobium female
f. Plasmodium ovalae
9. Trichomonas vaginalis in males (human) inhabit:
a. Urethra
d. Seminal vesicles
b. Urinary bladder
e. All of these
c. Prostate
f. Non of these.
10. When Entamoeba histolytica cyst causes typical flask shaped
ulcers with diarrhea and dysentery
inside intestinal wall of
human here it is called:
a. Minuta form
d. Trophozoite form
b. Magna form
e. Pseudocyst
c. Vegetative form
f. Non of these
2
11. Rectal prolapse is the result of infection with:
a. Entamoeba histolytica trophozoite.
c. Entamoeba coli cyst
e. Diphyllobothrium latum adult stage
f. All of these
b. Entamoeba histolytica cyst
d. Ancylostoma duodenalae larva
f. Entamoeba coli trophozoite
j. None of these
12. When a parasite host other parasites, this is called:
a. Symbiosis
d. Hyperparasitism
b. Coccidiosis
e. Amoebiasis
c. Trichinosis
f. None of these
13. Toxoplasma gondii is transmitted to human by:
a. Ingestion of sporulated oocyst from faecally contaminated food.
b. Ingestion of tissue of an intermediate host-containing pseudocyst.
c. eating of undercooked meat.
d. Blood transfusion.
e. Organ transplant.
f. All of these
j. None of these
14. The infective stage of Ancylostoma duodenalae is:
a. Cyst
d. Rhabditiform larva
b. Ova
c. Filariform larva
e. None of these
15. Balantidium –dysentery may be caused by:
a. Ascaris lumbricoides egg
c. Diphyllobothrium latum egg
b. Giardia lamblia cyst
d. Balantidium coli cyst
16. The term (viviparous) means:
a. Laying eggs
c. Immature egg
b. Laying eggs, which contain larvae
d. Giving birth to larvae
e. non of these
17. Pinocytosis means:
a. Trypanosoma reproduction
c. sleeping sickness disease
b. Trypanosoma locomotion
d. Feeding of Trypanosoma on blood
18. Plasmodium reinfection of the liver cells occur in these species
except one:
a. Plasmodium malariae
c. Plasmodium vivax
b. Plasmodium ovalae
d. Plasmodium falciparum
19. The infective stage of Schistosoma species is:
a. ovum
d. cercaria
b. miracidium
e. secondary oocyst
c. primary oocyst
f. non of these
20. Ancylostoma duodenalae inhabit:
a. Jejunum and ileum
d. Rectum
b. Liver
e. Urinary bladder
c. Portal system
f.non of these
21. Pirenella conica is an intermediate host for:
a. Taenia solium
d. Loa loa
b. Taenia saginata
c. Plasmodium ovalae
e. Heterophyes heterophyes
22. The parasite absorbs a huge quantity of vitamin B12 is called:
a. The pin worm
d. Hydatid worm
b. The whipworm
e. Fish tape worm
c. The giant worm
e. non of these
23. All the following about sand fly are true except:
a. has short distance flight
b. females are sucking nectar
c. Zoophilic d. biting during night e. incriminated in Orya fever transmission
24. Fugitive or calabar swelling is a disease caused by:
a. Enterobius vermicularis
c. Hymenolepis nana
b. Entamoeba histolytica
d. Taenia solium
e. non of these
3
Q.II. Fill and complete the following:
(13 marks)
1. In the case of Trichinella spiralis, the infection of pig may occur
by:
(3 marks)
a. ------------------------------------------------------------------------------------------b. -----------------------------------------------------------------------------------------2. Vaccination against parasitic infection have a limited success,
why:
(3 marks)
a. ----------------------------------------------------------------------------------------------b. ---------------------------------------------------------------------------------------------c. ----------------------------------------------------------------------------------------------3. Diagnosis of scabies is by-----------------------------------------------(2 marks)
------------------------------------------------------------------------------------------------4. Plasmodium can cause antimalarial resistance; mention the
mechanisms used for that.
(5 marks)
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Q.III. Differentiate between each of the following terms
(22 marks)
1. Chyluria and chylocele:
(5 marks)
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
4
2. The control of mosquito and Wucheraria bancrofti vector:
(5 marks)
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------3.
Cyclopropagative
transmission
and
cyclodevelopmental
transmission:
(4 marks)
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------4. Invaginated scolices and Evaginated scolices:
(3 marks)
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------5. Between the stage of egg deposition and extrusion in both
Schistosoma haematobium and Schistosoma mansoni?
(5 marks)
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
5
Q.IV. Fill in the table below:
(15 marks)
Definitive
host
Intermediate
host
Place of
parasitism for the
host
Leishmania tropica
Plasmodium falciparum
Trichuris trichuira
Ecchinococcus
granulosus
Diphyllobothrium latum
Q.V. Answer ONE of the following:
(10 marks)
1. -The following characters are specific to one of nematodes:
-Inhabit the terminal ileum till fertilization.
-Eggs are mature when lay.
-Life cycle takes 15-30 days.
1. Mention the name of this parasite?
2. Diagnosis of this parasite?
3. Draw the life cycle of this parasite?
OR
2. Discuss the life cycle of Cryptosporidium parvum with drawing?
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
6
Q.VI. Discuss the life cycle of Schistosoma mansoni with drawing:
(10 marks)
‫انتهت األسئلة‬