Question

The process of guttation takes place

• A. when the root pressure is high and the rate of transpiration is low
• B. when the root pressure is low and the rate of transpiration is high
• C. when the root pressure equals the rate of transpiration
• D. when the root pressure as well as rate of transpiration are high

Answer 1

Answer: (A)

when the root pressure is high and the rate of transpiration is low

Answer 2

The process of exudation of the liquid drops from the edges of leaves is known as guttation. It usually occurs through stomata-like pores called hydathodes.

• Fully turgid plants remove extra water through guttation.
• It is mainly caused by root pressure(when the root pressure is high and the rate of transpirationis low, guttation takes place).
• Hydathodes are present at the tips or margins of leaves of plants growing in moist shady places (e.g., Tropaeolum).

So, the correct answer is 'When the root pressure is high and the rate of transpiration is low'.