Adhesive and cohesive forces are 

Guttation is caused by 

Special pore - bearing structures called _______ are present on the leaf margins for exudation.  

From root hairs water and salts pass into epidermal cells   _______ cells, endodermis and finally  into xylem. 

The escape of sap from the cut or ruptured parts of the plant is called 

Maximum transpiration occurs through  the 

Rate of transpiration can be measured by  weighing method or with the help of

If the rate of transpiration  becomes more than the rate of photosynthesis, plants will

Guard cells help in 

Strong attraction of water molecules to xylem walls is called