Which outcome occurs when guard cell turgor pressure drops excessively in plant leaves during drought conditions?

💡 Explanation

When drought occurs, abscisic acid triggers potassium channels in the guard cells, causing water to exit via osmosis, thus reducing turgor pressure; consequently, stomata close, limiting CO2 intake for photosynthesis as a protective adaptation. Therefore stomata close, rather than promoting processes that exacerbate desiccation.

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