Question

A plant is exposed to bright sunlight and moderate humidity. The guard cells actively accumulate K+, Cl-, and malate. Which sequence of events will most likely occur?

Asked in UP PGT (Biology) · 2026
Transport in Plants · Biology
Exam PYQ4 Options
BiologyPlant PhysiologyTransport in PlantsTranspirationUP PGT (Biology)2026
💡
Quick Revision

Meristematic tissue contains actively dividing plant cells.

Correct AnswerCorrect option for this question
Option C — Decrease in water potential →→→ → rightarrow water enters guard cells rightarrow stomata open →→→ → rightarrow increased CO2CO2CO2 CO2 CO_2 diffusion

Learn Transport in Plants in 60 Seconds

Watch this quick lesson on Plant Water Relations: Osmosis, Transpiration & Guttation to revise the core concept and the facts most useful in competitive exams.

Topic Video
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 Plant Water Relations: Osmosis, Transpiration & Guttation in Previous Exams

See how often Plant Water Relations: Osmosis, Transpiration & Guttation has appeared in previous-year questions across major government exams.

High Exam Frequency
10UPSC Questions Asked in These Years:2010, 2011, 2012, 2013, 2018, 2019, 2020, 2021, 2023, 2024
10SSC Questions Asked in These Years:2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026
8Railways Questions Asked in These Years:2016, 2018, 2020, 2021, 2022, 2024, 2025, 2026
13State PSC Questions Asked in These Years:2012, 2013, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
Plant Water Relations: Osmosis, Transpiration & Guttation has appeared in 41 previous-year exam questions, most frequently in State PSC, UPSC and SSC.
2-Minute Revision Notes

Revise Transport in Plants and Its Related Concepts

Strengthen key concepts with exam-focused visual notes for faster revision.

Open Revision Notes ↗

Explore More Questions

Continue practising by chapter, topic and related subjects.

One question solved. Keep going.

Continue with the next Plant Physiology question and build your accuracy one question at a time.