Question

What are differences between the transport of materials in xylem and phloem?


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Answer 1

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Xylem tissue helps in the transport of water and minerals. Phloem tissue helps in the transport of food. Water is transported upwards from roots to all other plant parts. ... Transport of food in phloem requires energy in the form of ATP.

Answer 2

Answer:

Xylem tissue helps in the transport of water and minerals. Phloem tissue helps in the transport of food. Water is transported upwards from roots to all other plant parts. ... Transport of food in phloem requires energy in the form of ATP.

Explanation:

Difference between xylem and phloem transport:

Xylem transport                                       Phloem transport

1. Xylem tissues include tracheids, vessels, fibres and parenchyma and serve in ascent of sap/water and minerals.  

       1. Phloem tissues is a composed of four elements namely, sieve tube   elements, companion cell, phloem fibres and phloem parenchyma and serve in translocation of organic nutrients.  

2. Due to defined source and sink relationship, the movement is unidirectional.

      2. The movement is multidirectional as source sink relationship keeps changing.

3. Xylem transport is not influenced by metabolic inhibitors.

 3. Phloem transport is inhibited by metabolic inhibitors.

4. Xylem vessels and tracheids are main component of transport.

4. Sieve tube are main component of transport which are assisted by companion cells.

5. Major driving forces are transpiration pull and diffusion.

5. Being active transport, it uses ATP.

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