UPSC Civil Services Main 2025 Botany Paper I Question Paper PDF

Central Government Jobs Other Jobs 2025

  • Year 2025
  • Conducted By UPSC
  • Questions 8
  • Maximum Marks 250
  • Duration Three Hours
  • Languages Hindi & English

Exam Details

Detail Information
Examination UPSC Civil Services (Main) Examination
Year 2025
Conducting Body UPSC
Paper Botany Paper - I
Subject Botany
Duration Three Hours
Maximum Marks 250
Number of Questions 8
Question Type Descriptive / Subjective

This is the Botany Paper I for the UPSC Civil Services (Main) Examination 2025. The paper is conducted by the UPSC and consists of descriptive questions divided into two sections. Candidates are required to answer a total of five questions, with questions 1 and 5 being compulsory, and at least one question from each section. The paper allows three hours to complete and carries a maximum of 250 marks. This question paper is crucial for aspirants aiming to secure a position in the Civil Services, providing a clear understanding of the exam's scope and difficulty level in Botany.

Major Topics Covered

  • Lycopodium
  • Gametophytes
  • Prothalli
  • Heterocyst
  • Vegetative cell
  • Plant Systematics
  • Mycoplasma
  • Plant Diseases
  • Pathogen Infection
  • Host Plant Physiology
  • Ascomycota
  • Basidiomycota
  • Fruiting Bodies
  • Ascus Formation
  • Viruses
  • Plant Viruses
  • Gnetum
  • Gymnosperms
  • Male Cones
  • Female Cones

Why This Paper is Important

  • Useful for Civil Services (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

  • UPSC Civil Services Main 2025 Botany Paper II
  • UPSC Civil Services Main 2024 Botany Paper I
  • UPSC Civil Services Main 2025 General Studies Paper I
  • UPSC Civil Services Main 2025 Botany Paper I Answer Key
  • UPSC Mains 2025 Botany Paper I Solutions
  • UPSC Civil Services Main Botany Syllabus
  • UPSC Mains Botany Paper I Syllabus
  • UPSC Civil Services Main Exam Pattern

Instructions

  • पुस्तिका के मुख पृष्ठ पर निर्दिष्ट स्थान पर किया जाना चाहिए।
  • प्राधिकृत माध्यम के अतिरिक्त अन्य किसी माध्यम में लिखे गए उत्तर पर कोई अंक नहीं मिलेंगे।
  • प्रश्नों में शब्द सीमा, जहाँ विनिर्दिष्ट है, का अनुसरण किया जाना चाहिए।
  • जहाँ आवश्यक हो, निर्देशांक आरेखों को प्रश्न का उत्तर देने के लिए दिए गए स्थान में ही बनाना है।
  • प्रश्नों के उत्तरों की गणना क्रमानुसार की जाएगी।
  • यदि काटा नहीं हो, तो प्रश्न के उत्तर की गणना की जाएगी चाहे वह उत्तर अंशतः दिया गया हो।
  • प्रश्न-सह-उत्तर पुस्तिका (क्यू.सी.ए.) में खाली छोड़ा हुआ पृष्ठ या उसके अंश को स्पष्ट रूप से काटा जाना चाहिए।

  • There are EIGHT questions divided in TWO SECTIONS and printed both in HINDI and in ENGLISH.
  • Candidate has to attempt FIVE questions in all.
  • Questions no. 1 and 5 are compulsory and out of the remaining, any THREE are to be attempted choosing at least ONE question from each Section.
  • The number of marks carried by a question / part is indicated against it.
  • Answers must be written in the medium authorized in the Admission Certificate which must be stated clearly on the cover of this Question-cum-Answer (QCA) Booklet in the space provided.
  • No marks will be given for answers written in a medium other than the authorized one.
  • Word limit in questions, wherever specified, should be adhered to.
  • Diagrams/Figures, wherever required, may be drawn/given in the space provided for answering the question itself.
  • 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.

Questions (page 2)

Section A

Q1. Answer the following questions in about 150 words each:

(a) लाइकोपोडियम में कितने प्रकार के युग्मकोद्भिद पाए जाते हैं ? ऐसे प्रोथैलाई को प्रकृति में संग्रह करना दुष्कर क्यों है ?
How many types of gametophytes are found in Lycopodium? Why is it difficult to collect such prothalli in nature?

(b) हेटेरोसिस्ट कायिक कोशिका से कैसे भिन्न है ? इसके निर्माण को नियंत्रित करने वाले कारकों का उल्लेख कीजिए और हेटेरोसिस्ट के कार्यों पर टिप्पणी लिखिए।
How does heterocyst differ from vegetative cell ? Mention the factors controlling its formation and add a note on functions of heterocysts.

(c) पादप वर्गिकी में संख्यात्मक अभिव्यक्त आँकड़े कैसे प्रयुक्त होते हैं, समझाइए।
Explain how the numerical expression of data is utilized in plant systematics.

(d) “माइकोप्लाज़्मा मनुष्यों, जंतुओं एवं पादपों में गंभीर रोग पैदा करते हैं।” इस कथन को उचित उदाहरणों से सिद्ध कीजिए।
"Mycoplasma causes serious diseases in humans, animals and plants." Substantiate the statement with suitable examples.

(e) रोगजनक का संक्रमण परपोषी पादप की कार्यिकी (फिजियोलॉजी) को कैसे प्रभावित करता है ?
How does the infection of a pathogen affect the host plant physiology?

Section A

Q2. Answer the following questions in about 150 words each:

(a) ऐस्कोमाइकोटा और बेसिडियोमाइकोटा के फलकाय के प्रकारों का नामोल्लेख कीजिए । ऐस्कोमाइसीटस सदस्यों में एस्कस निर्माण के विभिन्न चरणों को उपयुक्त चित्रों के साथ लिखिए।
Enumerate the types of fruiting bodies of Ascomycota and Basidiomycota. Write the various steps of ascus formation in Ascomycetous members with suitable illustrations.

(b) विषाणुओं द्वारा उत्पन्न पादप रोगों के संक्रमण और प्रसार के विभिन्न तरीके क्या हैं ? विवरण दीजिए।
What are the various modes of infection and dissemination of plant diseases caused by viruses ? Describe.

(c) उपयुक्त नामांकित आरेखों के साथ नीटम के नर और मादा शंकुओं का संक्षिप्त विवरण दीजिए। आपको इस पादप को अनावृतबीजी क्यों मानना चाहिए ?
Briefly describe the male and female strobili of Gnetum with suitable labelled diagrams. Why should you consider this plant a gymnosperm?

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Frequently asked questions

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

This paper is for the UPSC Civil Services (Main) Examination.

What is the subject of this question paper?

The subject is Botany, specifically Paper I.

What is the year of this examination paper?

The year is 2025.

Who conducts the Civil Services Examination?

The examination is conducted by the UPSC (Union Public Service Commission).

What is the maximum marks for Botany Paper I?

The maximum marks for Botany Paper I are 250.

What is the time allowed for completing Botany Paper I?

The time allowed is Three Hours.

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