Acharya Nagarjuna University (ANU) 2006 B.Sc Zoology BIOLOGY OF INVERTEBRATES AND CELL BIOLOGY - Question Paper

B.Sc. DEGREE EXAMINATION, MAY 2006.
(Examination at the end of 1st Year)
Part II - Zoology
Paper I - BIOLOGY OF INVERTEBRATES AND CELL BIOLOGY

Time : 3 hours Maximum : 100 marks

part - A
(PROTZOA - HELMINTHES)

1. (a) provide a detailed account on life history of polystomella. (18)

Or

(b) define canal system in Porifera.

2. Write short notes on any 2 of the subsequent : (8 + eight = 16)
(a) Spicules (b) Trypanosoma
(c) Miracidium (d) Coral reefs.

part - B
(ANNELIDA - HEMICHORDATA)

3. (a) discuss in detail the Torsion in gastropoda. (18)

Or

(b) define and compare the reproductive system of Nereis with Leeach.

4. Write short notes on any 2 of the subsequent : (8 + eight = 16)
(a) Veliger (b) Metamorphism
(c) Balanoglossus (d) Pearl formation.


part - C
(CELL BIOLOGY)

5. (a) discuss the role of mitochondria in cellular energy. (16)

Or

(b) provide a detailed account on the ultra structure of Animal Cell.

6. Write short notes on any 2 of the subsequent : (8 + eight = 16)
(a) Golgi complex
(b) Cell junctions
(c) Lysosomes
(d) Chromosomes.

Earning:   Approval pending.