Q. Choose the correct statements regarding guttation and pick the correct option from the codes given below I. It occurs through specialised pore called hydathode II. Hydathodes can be located on the margin and tips of leaves III. It occurs in plants growing under condition of low soil moisture and high humidity IV. It occurs in herbaceous plants when root pressure is low and transpiration is high
A) I and II
B) III and IV
C) I, II, III and IV
D) I, II and IV
Explanation
Guttation refers to the exudation of water droplets (in the form of salt solution) from the margin and tips of leaves. Guttation water is exuded from the group of leaf cells through specialised opening or pore structure called hydathodes or water stomata. It occurs in herbaceous plants and in some angiosperms like Colocasia, and tomato. It is finally noticed in the morning in cereals like oat, wheat and maize. It takes place when transpiration is suppressed and relative humidity is high, such as during night
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.