BBYCT-131 Biodiversity (Microbes, Algae, Fungi and Archegoniates) in English Solved Assignment 2023


Course Code: BBYCT-131
Assignment Code: BBYCT-131/TMA/2023
Maximum Marks: 100

Title Name

BBYCT-131 Solved Assignment 2023

University IGNOU
Service Type Solved Assignment (Soft copy/PDF)
Course BSCG
Language ENGLISH
Semester 2023 Course: B.SC(G) CBCS
Session Valid from 1st January, 2023 to 31st December, 2023
Short Name BBYCT-131
Assignment Code BBYCT-131/TMA/2023
Product Assignment of BSCG 2023 (IGNOU)
Submission Date Valid from 1st January, 2023 to 31st December, 2023



Note: Attempt all questions. The marks for each question are indicated
against it.
1. a) Describe the structure of tobacco mosaic virus with the help of a well
labelled diagram.
b) Write a brief note on the mechanism of conjugation in bacteria.
2. Give an exhaustive overview of the economic importance of bacteria. (10)
3. Describe the morphology and mode of reproduction of Polysiphonia with
labelled diagrams.
4. a) Write a note on blue green algae as a major source of biofertilizer.
b) Describe the structure of basidiocarp of Agaricus with the help of a well
labelled diagram.
5. a) How do the bryophytes serve as indicators of pH and pollution?
b) How pteridophytes are different from bryophytes? Discuss.
6. a) Explain the mode of reproduction in Equisetum with special reference
to sporangiophore structure.
b) Write a note on glossopodium.
7. Describe the structure of root and stem of Pinus. Discuss the importance of
Pinus as a major source of timber.
8. a) Discuss the mechanism of Crozier and clamp connection in
Ascomycota and Basidiomycota.
b) What are the symptoms and control measures of early blight of potato?
9. a) Describe the different forms of lichen?
b) Give a elaborate account about the significance of lichens.
10. Write notes on the following:
i) Algal blooms
ii) Endospore
iii) Petrifaction
iv) Gemma cups



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