Question
In a starch test using a variegated leaf, what is the purpose of adding iodine solution at the end?
Asked in RRB Group D · 2025
Photosynthesis · Biology
Exam PYQ4 Options
Quick Revision
Photosynthesis uses light energy to convert carbon dioxide and water into carbohydrates.
Correct AnswerCorrect option for this question
Learn Photosynthesis in 60 Seconds
Need a quick concept refresh? This video covers Photosynthesis: Light Reaction & Calvin Cycle with concise, exam-ready explanations.
Everything you need to learn, practice & excel — in one place.
3,000+ Video-Based Study Material
PYQ-Based Quizzes
4,000+ Informative Audiobooks
6,300+ Full-Length Mock Tests
Daily Current Affairs
40,000+ PYQs
Questions Asked from Photosynthesis: Light Reaction & Calvin Cycle in Previous Exams
See how often Photosynthesis: Light Reaction & Calvin Cycle has appeared in previous-year questions across major government exams.
12UPSC Questions Asked in These Years:2010, 2011, 2012, 2013, 2014, 2015, 2016, 2018, 2019, 2021, 2022, 2023
10SSC Questions Asked in These Years:2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026
7Railways Questions Asked in These Years:2018, 2020, 2021, 2022, 2024, 2025, 2026
15State PSC Questions Asked in These Years:2004, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
Photosynthesis: Light Reaction & Calvin Cycle has appeared in 44 previous-year exam questions, most frequently in State PSC, UPSC and SSC.
2-Minute Revision Notes
Revise Photosynthesis and Its Related Concepts
Strengthen key concepts with exam-focused visual notes for faster revision.
Explore More Questions
Continue practising by chapter, topic and related subjects.
One question solved. Keep going.
Continue with the next Botany question and build your accuracy one question at a time.