CSS Botany Past Paper 2022

Instructions specific to this paper

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

Questions

1. Q. 220 marks

   Explain different types of algae based on cell structure, nature of the pigments and the types of reserve food materials.

2. Q. 320 marks

   Discuss the economic importance and distribution of gymnosperms in Pakistan.

3. Q. 420 marks

   Describe the pollination mechanisms in angiosperms.

4. Q. 520 marks

   Shed light on the important rules of botanical nomenclature.

5. Q. 620 marks

   Explain the role of different plant hormones from seed germination to fruit ripening.

6. Q. 720 marks

   What are the adverse effects and control measures of aquatic and terrestrial pollution? Explain.

7. Q. 820 marks

   Write notes on any TWO of the followings: (10 each) (a) Causes and mechanism of cell senescence (b) Importance of genetic engineering (c) Divergent Evolution

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.