LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
B.Sc. DEGREE EXAMINATION – PLANT BIOLOGY & PLANT BIO-TECH.
FIRST SEMESTER – NOVEMBER 2012
PB 1509 – MYCOLOGY
Date : 10/11/2012 Dept. No. Max. : 100 Marks
Time : 1:00 – 4:00
PART – A
[10 X 2 = 20]
ANSWER THE FOLLOWING, EACH WITHIN 50 WORDS:
- What is coenocytic mycelium?
- What is perfect stage of a fungus?
- What is conidium?
- What is ascus?
- What is a collateral host?
- What is basidiolichen?
- Write any two applications of yeast.
- What is an antibiotic?
- Name any two fungal toxin.
- What is superficial mycosis?
PART – B
[5 X 7 = 35]
ANSWER THE FOLLOWING, EACH ANSWER WITHIN 500 WORDS,
DRAW DIAGRAMS, FLOW CHARTS WHEREVER NECESSARY:
- a) Write an account on the fruiting bodies of Ascomycetes.
(OR)
- b) Describe the salient features of Basidiomycetes
- a) Describe the structure and importance of Aspergillus
(OR)
- b) Describe the structure of apothecium of Peziza.
- a) Briefly describe the life cycle of Polyporus.
(OR)
- b) Give an account on the structure and economic importance of Lichens.
- a) Write an account on the importance of Yeast.
(OR)
- b) Describe the industrial production of penicillin.
- a) Describe the diagnostic methods of fungal diseases.
(OR)
- b) Write an account on fungal toxins.
PART – C
(3 X 15 = 45)
ANSWER ANY THREE OF THE FOLLOWING, EACH WITHIN 1200 WORDS,
DRAW DIAGRAMS, FLOWCHARTS WHEREVER NECESSARY:
- Write an essay on the reproductive methods in fungi.
- Describe the life cycle of Albugo.
- Explain the various types of spores produced by Puccinia.
- Write an essay on the types and importance of mycorrhiza.
- Describe systemic mycosis.