OBJECTIVES
OBJECTIVES
Multiple Choice Questions MCQs
1. Number of speeies of Phylum Platyhelminthes are:
(a) 10,000 (b) 15,000 (c) 20,000 (d) 25,000
2. Parenchyma is derived from:
(a) Ectoderm (b) Mesoderm (c) Endoderm (d) None
3. The first phylum which has organ level organization is:
(a) Porifera (b) Cnidaria (c) Platyhelminthes (d) Nemertea
4. Excretory organ in platyhelminthes is:
(a) Metanephridia (b) Protonephridia (c) Both (d) Nephron
5. Gut is absent in:
(a) Turbellarian (b) Cestoda (c) Trematoda (d) None
6. Dugesia belongs to:
(a) Turbellarian (b) Cestoidae (c) Trematoda (d) Monogenea
7. Tape worms belongs to:
(a) Turbellarian (h) Cestoidae (c) Trematoda (d) Monogenea
8. Fasciola belongs to:
(a) Turbellarian (b) Cestoidae (c) Trematoda (d) Monogenea
9. Polystoma belongs to:
(a) Turbeliarian (b) Cestoidae (c) Trematoda (d) Monogenea
10. The ectoparasites are:
(a) “Furbellarian (b) Cestoidae (c) Trematoda (d) Monogenea
11. Free living flat worms are:
(a) ‘Umbel larian (d) Monogenea (c) Trematoda (d) Monogenea
12. The mucous secreting glands are:
(a) Rhahdites (b) Adhesive gland (c) Releasing gland (d) None
13. The larva of turbellarians is:
(a) Trochophore (b)Muller’s larva (c) Amphiblastula (d) None
14. The body of tape worm is composed of:
(a) Segments (b) Proglottids (c) Bristles (d) None
15. Number of species of tape worms are:
(a) 2500 (b)3000 (c) 3500 (d) 4000
The hold fast structure in tape worms is:
(a) Strobila (b) Head (c) Scolex (d) Neck
The expanded portion of oviduct is called:
(a) Strobila (b) Ootype (c) Scolex (d) Cirrus
The male copulatory organ is:
(a) Strobila (b) Ootype (c) Scolex (d) Cirrus
The intermediate host for beef worm is man and:
(a) Pig (b) Fish (c) Cattle (d) Snail
The long proboscis is present in:
(a) Platyhelminthes(b) Numertean (c) Gastrotricha (d) none
Ans
1. (c) 2. (b) 3. (c) 4. (b) 5. (b) 6. (a) 7. (b) 8. (c) 9. (d) 10. (d) 11. (a) 12. (a) 13. (b) 14. (b) 15. (c) 16. (c) 17. (b) 18. (d) 19. (c) 20. (b)
Fill in the blanks
1………………. are rod like cells. They swell and form a protective mucous sheath around the body.
2. _________ is present at the anterior end. It functions as a mechanoreceptor.
3. The to (or more) animals formed as a result of fission are called ___________
4. A _______ encloses many turbellarians eggs.
5. A few turbellarians produce a free-swimming_____________ larva.
6. They penetrate the snail’s soft tissue and develop into ___________
7. The ____________ escapes through a slit into water.
Ans
1. Rhabdites 2. statocyst 3. Zooids 4. cocoon 5. Muller’s 6. sporocysts 7. miracidium
True/ False
1. Rhabdites are rod like cells. They swell and form a protective mucous sheath around the body.
2. A statocyst is present at the anterior end. It ffinctions as a mechanoreceptor.
3. The two (or more) animals formed as a result of fission are called cysts.
4. A cyst encloses many turbellarians eggs.
5. A few turbellarians produce a free-s Miming Muller’s larva.
6. The miracidium escapes through a slit into water.
Ans
I. True 2. True 3. F (Zooids) 4. F (cocoon) 5. True 6. True
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