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Question : What happens to the guard cells when water flows into them?

Option 1: The guard cells close

Option 2: Stomatal pores open

Option 3: Stomatal pores shrink

Option 4: Stomatal pores close


Team Careers360 23rd Jan, 2024
Answer (1)
Team Careers360 25th Jan, 2024

Correct Answer: Stomatal pores open


Solution : The correct option is to Stomatal pores open.

When water enters a plant's guard cells, they become turgid, meaning they fill with water and swell. The guard cells alter form as their turgidity increases. Guard cells have a bean-shaped structure that permits them to open and close the stomatal pores. This stomatal pore opening provides gas exchange between the plant and its surroundings. It specifically enhances the absorption of CO 2 for photosynthesis as well as the release of oxygen (O 2 ) and water vapour.

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