LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
B.Sc. DEGREE EXAMINATION – ADVANCED ZOOLOGY & BIOTECH.
FIRST SEMESTER – APRIL 2012
AZ 1503/AZ 1500 - INVERTEBRATA
Date : 28-04-2012
Time : 1:00 - 4:00
Dept. No.
Max. : 100 Marks
PART - A
Answer ALL questions:
(10 x 2 = 20)
01. Define conjugation. Give an example.
02. Comment on Comb plates.
03. Differentiate pseudocoelomate from coelomate.
04. What are the functions of hirudin?
05. Differentiate gill books from book lungs.
06. What are solenocytes?
07. Define metamerism. Give an example.
08. Name the types of Pedicellariae.
09. Comment on glochidium larva.
10. Define water vascular system.
PART - B
Answer any FOUR of the following questions:
(4 x 10 = 40)
11. Explain the exoerythrocytic cycle of Plasmodium.
12. Describe diagnostic features of Phylum Mollusca and classify up to class level with
suitable examples.
13. Explain the cephalic appendages of prawn.
14. Give an account of parasitic adaptations of Fasciola hepatica.
15. Draw a neat labeled diagram of T.S. of Nereis.
16. Explain the structure, affinities and systematic position of Peripatus.
PART - C
Answer any TWO of the following questions:
17. Give an account of canal system in sponges.
18. What are coral reefs? Explain the theories for their formation.
19. Describe the different types of mouth parts of insects.
20. Explain the methods of respiration in Pila globosa.
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(2 x 20 = 40)