Chapter 5

NCERT
Class 10
Science
Solutions
12. What is the difference between transport of materials in xylem and phloem?

Question:

What is the difference between transport of materials in xylem and phloem?

Answer:

The following is the difference between the transport of materials by xylem and phloem :

Transport by Xylem Transport by Phloem
The xylem carries water and soluble salts to
the trunk, branches, and leaves of the tree.
The food substances are transported from the
leaves to other parts of the plant in a dissolved state.
The rise of water and dissolved salts is
due to the pull caused by evaporation.
This increases the osmotic pressure, which
transports substances from the phloem to the
tissues and the pressure decreases.
It does not consume energy. It requires energy because it is an active
process.

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