NEET Biology question
Not in NEET syllabus
Read the following statements carefully and choose the right answer from the codes given below.
I. PMA and silicon oil of low viscosity are considered antitranspirants. II. BAP, NAA and cobalt chloride are also used as antitranspirants. III. Abscisic acid affects the mechanism of opening and closing of stomata. IV. Starch of guard cells is converted into PEP by the process of hydrolysis. V. Potometer works on the principle of potential difference between the tip of the tube and that of the plant. VI. Transpiration rate is directly proportional to the relative humidity.
Solution
I, II, III and IV are all correct statements about antitranspirants, ABA's role, and guard-cell starch-to-PEP conversion. V is false — a potometer works on the principle that water absorbed equals
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