Question

A white carnation flower is cut and placed in a flask containing water mixed with blue food color. After some time, it is observed that the petals of the flower start turning blue. Which plant tissue is responsible for transport of the blue water to the flower?

Answer 1

The plant tissue that is responsible for transport of the blue water to the flower is the XYLEM VESSELS. 
Xylem vessels are responsible for upward transport of water and minerals from the roots to the stems and to the leaves.