BS-IS/11
219705
ZOOLOGY – COURSE NO. Zoo-101
Section-1
Note: – Attempt all ten questions. Each question carries 2 marks and the answer should be in 20 words.
Section-2
Note: – Attempt one question from each unit. Each question carries 12 marks. Draw labelled diagram wherever necessary.
SECTION-1
1. Define Protozoa.
2. What are Spicules?
3. Explain Nephridium.
4. Define metagenesis.
5. Explain cercariae larvae.
6. What is clitellum?
7. Describe an osculum.
8. What are tube feet?
9. Explain pinocytosis.
10. What is polymorphism?
SECTION-2
Unit I
1. Describe the process of conjugation and its significance in Paramecium.
2. Give the distinctive characters of phylum Porifera. Classify it up to classes giving characters and examples of each class.
Unit II
3. Write notes on:
(a) Histology of Metridium
(b) Medusa of Obelia.
4. What is digenetic life cycle? Explain it with reference to life history of Fasciola hepatica.
Unit III
5. What is a nephridium? Name and describe the various types of nephridia found in earthworm.
6. Give an account of digestive system of Prawn.
Unit IV
7. Describe the respiratory organs of Pila and explain how they are adopted for its mode of life.
8. Explain in detail the water vascular system of star fish.
Unit V
9. Write notes on:
(a) Concept of coelom
(b) Pluteus larva.
10. Write an account of nutrition in Protozoa.
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