SUMAN JUNIOR COLLEGE GIRLS — Half Yearly Examinations

Zoology — I Year

Max. Marks: 60   |   Time: 3 Hours


SECTION – A

Answer all questions. Each carries 2 marks.(10 × 2 = 20 M)

  1. Describe any 2 products of medicinal importance obtained from nature.
  2. Mention any 2 substances secreted by mast cells of connective tissue.
  3. Define osteon.
  4. What is cephalization? How is it useful to the organisms?
  5. What is botanical tissue?
  6. What is importance of air-bladder in fishes?
  7. List any 2 differences between flagellum and cilium.
  8. What is a kinetid?
  9. The eggs of Ascaris are called mammillated eggs. Justify.
  10. Mention the advantages of some UV rays to us.

SECTION – B

Answer any 6 questions from the following. (6 × 4 = 24 M)

  1. What is the “Euglenoid”?
  2. Explain Haversian system.
  3. Describe the salient features exhibited by polychaetes.
  4. Describe the structure of the heart of frog.
  5. Give an account of pseudopodia.
  6. Draw a neat labelled diagram of cockroach.
  7. “Prevention is better than cure.” Justify with regard to TDA.
  8. Describe greenhouse effect.

SECTION – C

Answer any 2 questions from the following. (2 × 8 = 16 M)

  1. Describe the structure and life cycle of Ascaris lumbricoides with the help of a neat labelled diagram.
  2. Describe the blood circulatory system of Periplaneta americana (cockroach) and draw a neat labelled diagram of it.
  3. List out the major air pollutants and describe their effects on human beings.

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