Indian Forest Service 2025 Botany Paper I Question Paper PDF

Central Government Jobs Other Jobs 2025

  • Year 2025
  • Conducted By UPSC
  • Maximum Marks 200
  • Duration Three Hours
  • Languages English

Exam Details

Detail Information
Examination Indian Forest Service (Main) Examination
Year 2025
Conducting Body UPSC
Paper BOTANY Paper - I
Subject Botany
Duration Three Hours
Maximum Marks 200
Question Type Descriptive / Subjective

This document contains the official question paper for the Indian Forest Service (Main) Examination 2025, specifically BOTANY Paper - I, conducted by UPSC. It is designed for candidates to assess their knowledge in Botany through descriptive questions. The paper outlines instructions for attempting the questions, including compulsory and selective questions, and specifies that answers must be in English. This paper is a crucial resource for aspirants preparing for the IFS Main examination, providing a clear understanding of the exam's scope and difficulty level in Botany.

Major Topics Covered

  • Moss
  • Liverworts
  • Biocides
  • Blue-green algae
  • Bacteria
  • Ethyl alcohol production
  • Citric acid production
  • Bacitracin production
  • Cellulase production
  • Gymnosperms
  • Seed Ferns
  • Bryophyta
  • Laminaria
  • Cycas
  • Female gametophyte
  • Ovule fertilization
  • Gymnosperms vs Angiosperms
  • Vasculature
  • Fertilization
  • Reproductive structures
  • Seed
  • Leaf spot disease
  • Tikka disease
  • Groundnut disease
  • Disease cycle
  • Disease management
  • Ophioglossaceae
  • Spike development
  • Sporangium
  • Ophioglossum
  • Fungal enzymes
  • Fungal toxins
  • Plant diseases
  • Zygomycetes
  • Sexual reproduction
  • Mucor
  • Manoxylic wood
  • Pycnoxylic wood
  • Pinus
  • Radial longitudinal section
  • Tangential longitudinal section

Why This Paper is Important

  • Useful for Indian Forest Service (Main) Examination preparation
  • Helps understand the latest exam pattern
  • Useful for practice and self-assessment
  • Covers frequently asked General Studies topics
  • Helpful for analysing question trends

Related Resources

  • Indian Forest Service (Main) Examination 2024 Botany Paper I
  • Indian Forest Service (Main) Examination 2025 Botany Paper II
  • Indian Forest Service (Main) Examination 2025 General Studies Paper I
  • Indian Forest Service (Main) Examination 2025 Botany Paper I Answer Key
  • Indian Forest Service (Main) Examination Botany Syllabus
  • UPSC Main Exam Botany Syllabus
  • Indian Forest Service (Main) Examination Pattern
  • UPSC IFS Main Exam Structure

Instructions

  • There are EIGHT questions in all, out of which FIVE are to be attempted.
  • Out of the remaining SIX questions, THREE are to be attempted selecting at least ONE question from each of the two Sections A and B.
  • Attempts of questions shall be counted in sequential order.
  • Unless struck off, attempt of a question shall be counted even if attempted partly.
  • Any page or portion of the page left blank in the Question-cum-Answer Booklet must be clearly struck off.
  • The number of marks carried by a question/part is indicated against it.
  • Answers must be written in ENGLISH only.
  • Neat sketches may be drawn, wherever required. melikativ m \it 1

Questions (page 2)

Section A

Q1. What are the major differences between Moss and Liverworts? What are Biocides? Describe their merits and demerits. Blue-green algae are also referred to as bacteria. Explain their algal and bacterial features. Give the scientific name of the organisms used for the production of: Name the order of Gymnosperms whose members are known as "SEED FERNS". Give its general characteristics.

(d(i)) Ethyl alcohol from glucose

(d(ii)) Citric acid

(d(iii)) Bacitracin

(d(iv)) Cellulase

Section A

Q2. Describe the ecological and horticultural applications of Bryophyta. Draw and label the thallus structure of *Laminaria*. Describe the sexual reproduction in *Laminaria*. Describe the structure of female gametophyte of Cycas. Explain the changes in the ovule of Cycas after fertilization.

Section A

Q3. Differentiate between Gymnosperms and Angiosperms with reference to their vasculature, fertilization, reproductive structures and seed. Name the causal organism of Leaf spot or Tikka disease of groundnut. What are the symptoms of this disease? Describe its disease cycle and management. Describe the major characteristics of Ophioglossaceae. Draw and describe the development of spike and sporangium in *Ophioglossum*.

Section A

Q4. Describe the role of fungal enzymes and toxins in the development of plant diseases. What are the salient features of Zygomycetes? With the help of suitable diagrams, describe the sexual reproduction in *Mucor*. What is the difference between Manoxylic and Pycnoxylic wood? Draw well-labelled diagrams of Radial longitudinal section and Tangential longitudinal section of long shoot of Pinus.

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Frequently asked questions

What is the name of the exam for which this paper is?

This is the question paper for the Indian Forest Service (Main) Examination.

What is the subject of this paper?

The subject of this paper is BOTANY Paper - I.

Which conducting body released this question paper?

The question paper was released by UPSC (Union Public Service Commission).

What is the year of this examination paper?

The year of this examination paper is 2025.

What type of questions are included in this paper?

This paper includes descriptive questions.

What language are the answers required to be written in?

Answers must be written in English only.

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