Exam Details
| Subject | microbiology, phycology, mycology, lichenology and plant pathology | |
| Paper | ||
| Exam / Course | zoology | |
| Department | ||
| Organization | Mar Ivanios College | |
| Position | ||
| Exam Date | November, 2016 | |
| City, State | kerala, thiruvananthapuram |
Question Paper
(Pages 1131
P.T.O.
MAR IVANIOS COLLEGE (AUTONOMOUS)
THIRUVANANTHAPURAM
Reg. No.:.………………… Name:...…………………
Third Semester B.Sc. Degree Examination, November 2016
First Degree Programme under CBCSS
Core Course: Botany II
AUBO341: Microbiology, Phycology, Mycology, Lichenology and Plant Pathology
Time: 3 Hours Max. Marks: 80
SECTION A
Write short notes on ALL the following.
1. Heterocysts
2. Palmella stage
3. Pigments in Phaeophyceae
4. Fairy rings
5. Causative organism of blast disease of Paddy
6. Cap cells
7. Mycoplasma
8. Pasteurization
9. Chlamydospores
10. Biofertilizers
(10 1 10 Marks)
SECTION B
Answer any EIGHT questions, not exceeding one paragraph.
11. Distinguish between isogamy and oogamy.
12. Describe the structure of TMV.
13. Draw a labelled diagram of the apothecium of Peziza.
14. What are phytoalexins
1131
2
15. Write a short note on root wilt of Coconut.
16. What is diatomaceous earth
17. Explain the thallus structure of Sargassum.
18. What is carrageenin
19. What are algal blooms
20. Describe the preparation of an organic fungicide.
21. Write a note on symbiotic nitrogen fixation.
22. Differentiate between isidia and soredia.
2 16 Marks)
SECTION C
Short essay type Answer any SIX questions.
23. Explain the process of conjugation in bacteria.
24. Write a note on the sex organs in Chara.
25. Describe the internal structure of the thallus of Usnea.
26. Write a note on any four methods of food preservation.
27. What is Bordeaux mixture How is it prepared
28. What are the characteristic features of Basidiomycotina
29. Give an account on the economic importance of fungi.
30. Describe the methods of asexual reproduction in Asomycotina.
31. Describe with diagram the morphology of the basidiocarp of Agaricus.
4 24 Marks)
SECTION D
Long essay type Answer any Two questions.
32. With illustrations, explain the structure and reproduction in bacteriophages.
33. Explain the life cycle of Polysiphonia with diagrams.
34. Write an essay on the various types of life cycles in Saccharomyces with illustrations.
35. Describe the life cycle of Puccinia with suitable diagrams.
15 30 Marks)
P.T.O.
MAR IVANIOS COLLEGE (AUTONOMOUS)
THIRUVANANTHAPURAM
Reg. No.:.………………… Name:...…………………
Third Semester B.Sc. Degree Examination, November 2016
First Degree Programme under CBCSS
Core Course: Botany II
AUBO341: Microbiology, Phycology, Mycology, Lichenology and Plant Pathology
Time: 3 Hours Max. Marks: 80
SECTION A
Write short notes on ALL the following.
1. Heterocysts
2. Palmella stage
3. Pigments in Phaeophyceae
4. Fairy rings
5. Causative organism of blast disease of Paddy
6. Cap cells
7. Mycoplasma
8. Pasteurization
9. Chlamydospores
10. Biofertilizers
(10 1 10 Marks)
SECTION B
Answer any EIGHT questions, not exceeding one paragraph.
11. Distinguish between isogamy and oogamy.
12. Describe the structure of TMV.
13. Draw a labelled diagram of the apothecium of Peziza.
14. What are phytoalexins
1131
2
15. Write a short note on root wilt of Coconut.
16. What is diatomaceous earth
17. Explain the thallus structure of Sargassum.
18. What is carrageenin
19. What are algal blooms
20. Describe the preparation of an organic fungicide.
21. Write a note on symbiotic nitrogen fixation.
22. Differentiate between isidia and soredia.
2 16 Marks)
SECTION C
Short essay type Answer any SIX questions.
23. Explain the process of conjugation in bacteria.
24. Write a note on the sex organs in Chara.
25. Describe the internal structure of the thallus of Usnea.
26. Write a note on any four methods of food preservation.
27. What is Bordeaux mixture How is it prepared
28. What are the characteristic features of Basidiomycotina
29. Give an account on the economic importance of fungi.
30. Describe the methods of asexual reproduction in Asomycotina.
31. Describe with diagram the morphology of the basidiocarp of Agaricus.
4 24 Marks)
SECTION D
Long essay type Answer any Two questions.
32. With illustrations, explain the structure and reproduction in bacteriophages.
33. Explain the life cycle of Polysiphonia with diagrams.
34. Write an essay on the various types of life cycles in Saccharomyces with illustrations.
35. Describe the life cycle of Puccinia with suitable diagrams.
15 30 Marks)
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