Name of the University : Netaji Subhas Open University
Name of the Exam : BDP Term End Exam
Document Type : Sample Question Paper
Year: 2016
Subject: Botany

Website : http://www.wbnsou.ac.in/student_zone...c2015-June2016
Download Model/Sample Question Papers:
EBT - 01 : http://www.indianjobtalks.com/uploads/76269-EBT-01.pdf
EBT - 02 : http://www.indianjobtalks.com/uploads/76269-EBT-02.pdf
EBT - 03 : http://www.indianjobtalks.com/uploads/76269-EBT-03.pdf
EBT - 05 : http://www.indianjobtalks.com/uploads/76269-EBT-05.pdf
EBT - 06 : http://www.indianjobtalks.com/uploads/76269-EBT-06.pdf
EBT - 07 : http://www.indianjobtalks.com/uploads/76269-EBT-07.pdf
EBT - 09 : http://www.indianjobtalks.com/uploads/76269-EBT-09.pdf
EBT - 10 : http://www.indianjobtalks.com/uploads/76269-EBT-10.pdf

BDP Term End Botany Question Paper :
1st Paper : Microbiology and Algae
Time : 2 Hours
Full Marks : 50

Group – A :
Answer any two of the following questions : 10 × 2 = 20
1. Give an illustrated account of the process of sexual reproduction in Ectocarpus. Mention the main pigments responsible for its brown colour. Discuss the types of life cycles found in the class Phaeophyceae. 5 + 2 + 3
2. State the general characters of Cyanophyceae. Why are they also named as ‘Cyanobacteria’ ? Discuss in brief the processes of reproduction found among the members of this group of aglae. 4 + 2 + 4
3. Briefly explain how genetic recombination occurs during bacterial transformation. How does this process differ from other processes of genetic recombinations in bacteria. 8 + 2
4. What are the general characteristics of ‘Virus’ ? Briefly describe the structure of a typical plant virus with necessary diagram. What are the principal characteristics of different phases of lytic cycle ? 2 + 4 + 4

Group – B :
Answer any three of the following questions : 6 × 3 = 18
5. Discuss in brief the role of algae in maintaining the ecological balance in nature. 6 6. Mention the general characters of Xanthophyceae and Rhodophyceae. 3 + 3
7. Compare the structures of cell wall of ‘gram +ve’ & ‘gram –ve’ bacteria. 6
8. Discuss the role of bacteria in N2 -fixation in nature. 6
9. Discuss the different phases of bacterial growth with the help of a diagram. 6
10. What is the full form of HIV ? Give a brief idea about the structure, characteristics and importance of HIV. 1 + 5

Group – C :
Answer any four of the following questions : 3 × 4 = 12
11. Give examples of use of algae as food & fodder. 3
12. State briefly the economic importance of ‘diatomite’. 3
13. What is Prion ? What do you know about its character and infectivity ? 3
14. What is ‘generalized transduction’ ? What is its difference with specialized transduction ? 3
15. Mention the structure and function of bacterial capsule. 3
16. What is supercoiled DNA and where is it found ? 2 + 1

Botany (2nd Paper : Fungi, Lichen & Plant Pathology)
Time : 2 Hours
Full Marks : 50
Weightage of Marks : 70%

Group – A :
Answer any two questions : 10 × 2 = 20
1. What are the phases of sexual reproduction in fungi ? What are homothallism and heterothallism ? Write about the types of homothallism and heterothallism encountered in fungi with examples. 2 + 2 + 3 + 3
2. Describe different types of sexual reproduction in phycomycetes. Give an account of the life cycle of Rhizopus. 5 + 5
3. What are mycobiont and photobiont ? Describe the sexual reproduction in lichen. What are the beneficial roles of lichen. 2 + 4 + 4
4. What are the different types of Symptom ? Write about different types of Necrotic symptoms of plants. 3 + 7

Group – B :
Answer any three questions : 6 × 3 = 18
5. Discuss the beneficial and harmful roles of fungi. 3 + 3
6. What is clamp connection ? Write about the fruit bodies found in Fungi Imperfecti. 2 + 4
7. What is dikaryotic hypha ? Write about the different processes of plasmogamy in Ascomycetes. 2 + 4
8. What are primary and secondary inocula ? Write in brief, about Koch’s postulates. 2 + 4
9. Write in brief the methods of entry of pathogen in the host. 6
10. Describe the symptoms and direct control measures of Late Blight of Potato. 3 + 3

Group – C :
Answer any four questions : 3 × 4 = 12
11. What are primary and secondary mycelia ? In which class of fungi do they occur ? 1 + 1 + 1
12. Describe different types of mycorrhiza. 3
13. What are cleistothecium, apothecium and perithecium ? 1 + 1 + 1
14. What is Bordeaux mixture ? In which plant disease is it used ? 2 + 1
15. What is phytoalexin ? Write two examples of it. 2 + 1
16. Name the pathogen of Brown Spot of Rice. Write the symptoms of this disease. 1 + 2