CSS Botany Past Paper 2023

Instructions specific to this paper

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

Questions

1. Q. 220 marks

   Write comprehensive notes on the following: (10 each) (a) Morphology of thallus in Algae (b) Alternation of generation in Bryophytes

2. Q. 320 marks

   Describe significance of various types of abiotic environmental factors for soil formation. Give soil characteristics formed by each agent.

3. Q. 420 marks

   Describe ultra-stucture of nucleus with particular reference to nuclear membrane and pore complexes.

4. Q. 520 marks

   Describe various types of environmental pollutions. Give significance of biodiversity and conservation to save the living planet.

5. Q. 620 marks

   Give a diagrammatic account of location of the different photosystems in granum and briefly describe their functions in photosynthesis.

6. Q. 720 marks

   What are different rules of botanical nomenclature? Compare natural and artificial system of classification.

7. Q. 820 marks

   Write short notes on any TWO of the followings: (10 each) (a) Reproduction and economic importance of yeast (b) Illustrative account of protein synthesis in eukaryotes (c) Endosperm development in Angiosperms

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.