CSS Botany Past Paper 2019

Instructions specific to this paper

• Attempt ONLY FOUR questions from PART-II. ALL questions carry EQUAL marks.

Questions

1. Q. 220 marks

   Discuss evolution of vascular bundles in tracheophytes.

2. Q. 320 marks

   Describe process of fertilization for an angiospermic plant with significance of double fertilization.

3. Q. 420 marks

   Write a comprehensive account of Plant Growth Hormones.

4. Q. 520 marks

   Give an account of structure of epidermis and describe various functions of its different cell types.

5. Q. 620 marks

   Write a comprehensive account of light and dark reactions in plants.

6. Q. 720 marks

   Describe various structural modification of roots, stems and leaves tissues in xerophytic plants.

7. Q. 820 marks

   Write short notes on any FOUR of the followings:- (5 each) (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

Standard FPSC instructions

Printed on this and every CSS paper.

• Part-II is to be attempted on the separate Answer Book.
• All the parts (if any) of each question must be attempted at one place instead of at different places.
• Write Q. No. in the Answer Book in accordance with Q. No. in the question paper.
• No page/space be left blank between the answers. All the blank pages of the Answer Book must be crossed.
• Extra attempt of any question or any part of the attempted question will not be considered.