Question 3 10 pts What do the results of these two experiments tell you about th

Question

Question 3 10 pts What do the results of these two experiments tell you about the role of light and K+ ion concentration on opening of stomata? Effect of light intensity on stomatal openin 120 C100 8 80 60 9 20 100 200 300 400 500 irradiance watts/m2 Effect of external K+ concentration on stomatal aperture E14 512 10 100 150 external K+ concentration stomata close in response to increased light or increased external K+ ion concentration stomata open in response to increased light, but close with increased external K+ ion concentration stomata open in response to increased light or increased external K+ ion concentration stomata open only when there is both increased light and increased external K+ ion concentration

Explanation / Answer

The correct answer is option C that is stomata open is response to increased light or increased external K+ concentration. We can conclude from the graph that as the light increases, the % of stomata open is increasing and for K+ Concentration, it increases as the Potassium concentration increases.

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