Question

Guttation is defined as:

• A. Movement of soluble organic materials through plants.
• B. Movement of water through the apoplast.
• C. Secretion of xylem sap.
• D. Negative pressure created by transpiration.

Answer 1

The correct option is C

Secretion of xylem sap.

Effects of root pressure is also observable at night and early morning when evaporation is low, and excess water collects in the form of droplets around special openings of veins near the tip of grass blades, and leaves of many herbaceous parts. Such water loss in its liquid phase is known as guttation.