Question

Guttation occurs through
A. Hydathodes
B. Lenticels
C. Cuticle
D. None of these

Answer 1

Guttation is an uncontrolled process through which the vascular plants secretes out the excess water rich in minerals through their pores.

Complete Answer:
Let us analyse the options to find the correct answer.
Option A: Hydathodes are special pores found on the surface of leaves of angiosperms. They are responsible for the secretion of excess water in the form of drops. Therefore, this is the correct option.

Option B: Lenticels are pores which are found on the epidermis of plant organs like stem.They help in exchange of gases between the atmosphere and plant internal tissues.Therefore, this is the incorrect option.

Option C: Cuticle is the water-repellent layer present on the epidermal cells of leaves and other parts of the plant in order to prevent water loss. Therefore, this is the incorrect option.

Option D: As one of the options is correct, this is the incorrect option.

Thus, the correct option is A) Hydathodes.

Additional information:
- Hydathodes are also called water stomata as they are similar in structure with stomata.
- They are made up of thin walled parenchymatous cells.
- Guttation occurs in order to balance the water content in plants and it usually happens at night when there is high moisture in roots.

Note: Guttation differs from the process in which the water droplets from the atmosphere condenses on the surface of plants in a way that in this water droplets are secreted from the pores.