NEET Biology Transport In Plants Based Practice Questions & Answers with Viewers Discussion and Detailed Explanation

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Transport In Plants Topic Based

Question & Answer Discuss:

Which one gives the most valid and recent explanation for stomatal movement?

(a) Transpiration

(b) Guard cell photosynthesis

(c) Starch hydrolysis

(d) Potassium influx and efflux

Answer: (d)

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.

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