Comment on the experimental setup. Will the mercury level fluctuate (go up/down) if phenyl mercuric acetate is sprayed on leaves?

(N/A) The experimental setup demonstrates the process of transpiration in plants. As the leafy shoot transpires,it creates a suction pressure (transpiration pull) that draws water up the tube,causing the mercury level to rise. Phenyl mercuric acetate is an anti-transpirant. When sprayed on the leaves,it induces the closure of stomata,thereby significantly reducing the rate of transpiration. Consequently,the transpiration pull decreases,and the mercury level will go down (or fail to rise) compared to the control setup.