CSS Botany Past Paper 2019
PART-2(Subjective) 80 Marks
Attempt ONLY FOUR Questions from PART-II. (20×4)
PART-II
Q. No. 2 Discuss the evolution of vascular bundles in tracheophytes.
Q. No. 3 Describe the process of fertilization for an angiospermic plant with the significance of double fertilization.
Q. No. 4 Write a comprehensive account of plant growth hormones.
Q. No. 5 Give an account of the structure of the epidermis and describe various functions of its different cell types.
Q. No. 6 Write a comprehensive account of light and dark reactions in plants.
Q. No. 7 Describe various structural modifications of root, stem, and leaf tissues in xerophytic plants.
Q. No. 8 Write short notes on any FOUR of the following:
(a) Theory of Natural Selection
(b) Economic importance of Rust and Smut
(c) Causes and significance of Polyploidy
(d) Types of stele
(e) Evolution of sporophyte in Bryophytes