1. Temperature 2. O ₂ concentration 3. Light 4. CO ₂ concentration

Answer: 2. O ₂ concentration Stomata respond to light, CO ₂ level, temperature and water status, but not to O ₂ concentration. Low CO ₂ and light open stomata; high CO ₂ , darkness or water stress close them.

Topic: Factors affecting photosynthesis· Plant Physiology

Stomatal movement is not affected by

1. Temperature

2. O\(_2\) concentration

3. Light

4. CO\(_2\) concentration

Doubtly Asked 30 Oct 2026 NEET UG 2018 neet Save WhatsApp Report

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Answer: 2. O\(_2\) concentration

Stomata respond to light, CO\(_2\) level, temperature and water status, but not to O\(_2\) concentration.

Low CO\(_2\) and light open stomata; high CO\(_2\), darkness or water stress close them.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

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Stomatal movement is *not* affected by

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Stomatal movement is not affected by