CSS Botany Past Paper 2010
Paper-I
PART-2(Subjective) 80 Marks
Attempt ONLY FOUR Questions from PART-II. (20×4)
PART-II
Q. No. 2
(a) Classify different groups of algae based on their habitat and pigmentation
(b) Write a note on the Economic Importance of Chlorophyta
Q. No. 3 Fungi have great impact on our national economy. Explain their constructive and destructive roles with a special emphasis on the agriculture sector
Q. No. 4 What are lichens? Explain how lichens are not only beneficial for humans but also for the entire universe
Q. No. 5
(a) Explain the general characteristics of Bryophytes
(b) Write a detailed note on mode of reproduction in Marchantia
Q. No. 6
(a) Discuss the structure of strobilus and sporangia of Equisetum
(b) Explain the major resemblances and differences between Gymnosperms and Pteridophytes
Q. No. 7 Explain the mechanism of pollination, fertilization and development of seed as well as seed dispersal in Angiosperms
Q. No. 8 Write short notes on ANY TWO of the following:
(i) Rules of botanical nomenclature
(ii) Chemo – taxonomy and Numerical taxonomy
(iii) Concept of Speciation
Paper-II
PART-2(Subjective) 80 Marks
Attempt ONLY FOUR Questions from PART-II. (20×4)
PART-II
Q. No. 2
(a) What is Oxidative phosphorylation? How does it take place on the mitochondrial membrane and how is it associated with the synthesis of metabolic energy?
(b) What is pigment? Give the structures and chemical composition of all plant pigments involved in photosynthesis.
Q. No. 3 Describe the structure, transport, biosynthesis and mode of action of Auxins.
Q. No. 4
(a) Differentiate between Dark Respiration and Photo-respiration.
(b) Describe the salient effects of water-logging on plants.
Q. No. 5 What is Ecosystem? How is its composition affected by different environmental factors?
Q. No. 6 Write notes on the following:
(i) Genetic code
(ii) Gene transformation
Q. No. 7
(a) What are major factors which affect the evolution of a trait?
(b) Describe Ecological Energetics.
Q. No. 8 Write short notes on ANY TWO of the following:
(i) Photoperiodism
(ii) Ultra-structure of chloroplast
(iii) Conservation of Natural resources