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Plant Physiology : Class 9 Science MCQ Practice Questions & Answers (English) - ObjectiveMcq

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HomePracticeClass 9 ScienceBiologyPlant Physiology

Plant Physiology in Class 9 Science : Practice MCQ Questions & Answers with Explanations

1 practice sets · Page 1 of 1

Class 9 ScienceMediumBiologyPlant PhysiologyStomata

1.

What is the main function of stomata?

A

Mechanical support

B

Gaseous exchange and transpiration

C

Photosynthesis

D

Transport food

View Answer

Correct Answer: B — Gaseous exchange and transpiration

Explanation:

Stomata help in gaseous exchange and regulate water loss through transpiration.