PHYLUM NEMATODA

PHYLUM NEMATODA

1. Which one of the following has no intermediate host

a. Tape worm b. Liver flukes c. Plasmodium d. Round worm

2. In Ascaris, the last moulting of larva takes place in

a. Liver of man b. Lungs of man c. Heart of man d. Intestine of man

3. In Ascaris only the anterior part of the testis is functionable. Such a gonad is known as

a. Monorchic b. Didelphic c. Telogonic d. Metogonic

4. Rhabditiform larva occurs in the life history of

a. Round worms b. Liver fluke c. Earth worm d. Tape worm

5. Ascaris lumbricoides completes its migration in man from intestine to intestine in about

a. 10-14 days b. 50-60 days c. 30-34 weeks d. 1-2 years

6. The female Ascaris can be distinguished from the male by

a. Curved posterior part b. Straight posterior part c. Pineal sate

d. Shorter in size

7. Elephantiasis disease is transmitted by

a. sand fly b. Fruit fly c. House fly d. Mosquito

8. Testis in male Ascaris

a. Only one b. Two c. Many d. None

9. Excretory waste of Ascaris

a. Urea b. Uric acid c. Ammonia d. None

10. Alcopar is the Drug for infection of

a. Ascaris b. Taenia c. Malaria d. All

11. Ascaris protect itself by

a. Cuticle b. Anti enzyme c. Both d. None

12. All Roundworms differ from the Flatworms in having

a. Bilateral symmetry b. Three germ layers c. Presence of mesenchyme cells

d. False coelom

13. Pscudococlomic type of body cavity is unique of only

a. Annelids b. Platyhelminthes c. Nematodcs d. Only ‘a’ and ‘b’

14. Syncystium in the Nematodcs is the epidermis consisting of a sheet of protoplasm

a. Without nuclei b. With nuclei and cell boundaries

c. With nuclei and without cell boundaries d. With a single nucleus

15. The cuticle of the Nematodes which gets replaced from time to time is secreted by the

a. ciliated epidermis b. Mesoderm c. Syncitialepidermis d. Endoderm

16. sexes in Namatodes are distinguished by certain morphological variation. This phenomenon

is termed as

a. Polymorphism b. Alternation of generation c. Genetic variation

d. Sexual dimorphism

17. Respiration in Nematoda is

a. Aerobic b. Anaerobic c. ‘a’ and ‘b’ d. None of these

18. Select the one without the syncystial epidermis

a. Ancylostoma duodenale b. Ascaris Lumbricoides

c. Schistosoma heamotobium d. Wuchereria bancrofti

19. Only ................. exhibits sexual dimorphism.

a. Taenia soilum b. Ascaris Lumbricoides c. Fasciola Hepatica d. Planaria

20. The disease caused by common intestinal roundworm is

a. Ascariasis b. Ancylostomiasis c. Elephantiasis d. None of these

21. The male of Ascaris is distinguished from a female by the following feature except

a. The male is smaller and thinner than the female

b. The posterior end is curved with a cloacal opening

c. There are two penial setae d. All the above

22. The embryos that are set free from the eggs of Ascaris in the intestine of man is known as

a. Rhubditiform larvae b. Cercaria c. Trochophore d. Miracidium

23. The movement of the rhabditiform larvae through different organs before reaching the

intestine once again is referred as.

a. Alternation or generation b.Developmental migration c. Extra intestinal migration

d. None of these

24. Actopic ascariasis is a state when the worms

a. Creeps out through the nose and mouth

b. Lives in other parts of the body instead of the intestine

c. Inhabits the lung tissue d. Are found in the heart

25. Ancylostoma duodenale is a

a. Trematode b. Cestode c. Nematode d. Annelid

ANSWERS

1. d 2. d 3. c 4. a 5. a 6. b 7. d 8. a 9. a 10. a

11. c 12. d 13. c 14. c 15. c 16. d 17. c 18. c 19. b 20. a

21. d 22. a 23. c 24. a 25. c