what are the constituents of phloem

Phloem is a complex plant tissue responsible for transporting food from leaves to different parts of the plant. The food transported is mainly in the form of sugars produced during photosynthesis.

Constituents of phloem

1. Sieve tubes
   These are tube-like structures that transport food throughout the plant.

2. Companion cells
   They assist sieve tubes in the transport of food and help in their functioning.

3. Phloem parenchyma
   These living cells store food and help in lateral transport of nutrients.

4. Phloem fibres
   These are dead cells that provide mechanical support and strength to the plant.

Importance of phloem

Phloem helps distribute prepared food from leaves to roots, stems, fruits, and growing regions of the plant. This process is called translocation.