Biology: Botany: UPSC Previous Year Questions (Science and Technology)
1 previous year UPSC Prelims question on Biology: Botany (Science and Technology). Choose an option to see the answer and explanation.
Explanations state facts as of the year each question was asked; words like “recently” refer to that year.
Showing 1–1 of 1 question
UPSC 1999Science and Technology · Biology: Botany
Q1. Which one of the following is a useful functional association between fungi and the roots of higher plants?
Explanation
Mycorrhiza is a symbiotic association between fungi and the roots of higher plants. In this relationship, the fungi help the plants by increasing water and nutrient absorption (especially phosphorus), while the plants provide carbohydrates (like glucose) to the fungi. This mutualistic relationship is beneficial to both organisms and plays a crucial role in plant growth and soil health.
Answer key for these questions
Q
UPSC year
Correct answer
1
1999
(d) Mycorrhiza
Frequently asked questions
How many previous year UPSC questions are there on Biology: Botany?
This page covers 1 previous year UPSC Prelims GS Paper-I questions on Biology: Botany (Science and Technology), asked from 1996 to 2025. Each has the correct answer and an explanation.
How should I use previous year UPSC questions for Prelims?
Attempt each question first, then open the answer and read the explanation for every option. Repeat by chapter, and track which statements UPSC reuses across years. Previous year questions show the exam pattern and difficulty level.
Which years are covered for Biology: Botany?
Questions on Biology: Botany (Science and Technology) are available for 14 years, from 1996 to 2025. Use the Year filter to practise a single paper.
