Botany 2010
paper 1
Part II

Q.2 a) classify different groups of algae based on their habitat and pigmentation. 10
b) Write a note on the economic importance of chlorophyta.10

Q .3 Fungi have great impact on our national economy. Explain their constructive and destructive roles with a special emphasis on agricultural sector.

Q.4 What are lichens? Explain how lichens are not only beneficial for humans but also for the universe?

Q.5 a) Explain the general characteristics of Bryophytes. 10
b) Write a detailed note on mode of reproduction in Marchantia. 10

Q.6 a)Discuss the structure of strobilus and sporangia of Equisetum. 10
b)Explain thhe major resemblances and differences between Gymnosperms and Pteridophytes 10

Q.7 Explain the mechanism of pollination, fertilization and development of seed as well as seed dispersal in Angiosperms.


Q.8 Write short notes on any two of the following:
1)Rules of botanical nomenclature
2) Chemo-taxonomy and numerical taxonomy
3) Concept of Speciation





Botany 2010
paper 2
Part II

Q.2 a) What is oxidative phosphorylation? How does it take place on the mitochondrial membrane and how is it associated with synthesis of metabolic energy? 10
b) What is pigment? Give the structures and chemical composition of all plant pigments involved in photosynthesis. 10

Q.3 Describe the structure ,transport, biosynthesis and mode of action of Auxins.

Q.4 a) Differentiate between Dark respiration and photo respiration. 10
b) Describe the salient effects of water-logging on plants. 10

Q.5 What is ecosystem How is its composition affected by different environmental factors.?

Q.6 Write notes on following: 10*2
i) Genetic code
ii)Gene transformation

Q.7 a) What are major factors which affect the evolution of a trait? 10
b) Describe ecological Energetics. 10

Q.8 Write short note on any TWO of following:
i) Photoperiodism
ii) Ultra-structure of chloroplast
iii)Conservation of natural resources