Which one gives the most valid and recent explanation for stomatal opening?
Correct answer: D. Potassium influx and efflux
- A. Starch hydrolysis
- B. Guard cell photosynthesis
- C. Transpiration
- D. Potassium influx and efflux
Explanation
According to this theory, K + ion enter and accumulate in guard cells during daytime, causing opening of stomata and during night, K + ions move out of stomata and stomata closes. So option D is correct.
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