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The process of guttation takes placeA. when the root pressure is high and the rate of transpiration is lowB. when the root pressure is low and the rate of transpiration is highC. when the root pressure equals the rate of transpirationD. when the root pressure as well as rate of transpiration are high. |
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Answer» Correct Answer - A The process of exudation of liquid drops from the edges of leaves is called guttation. Usually it occurs through stomata-like pores called hydathodes. It is this process by which fully turgid plants remove extra water. The cause of guttation is mainly roots pressure (when the roots pressure is high and rate of transpiration is low, guttation take place). Hydathodes are stomata-like pores generally present at the tips or margins of leaves of those plants that grow in moist shady places (e.g. Tropaeolum). |
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