(i) Transports water and mineral salts in the plant body.
(ii) Stores water and mineral salts in the plant body.
(iii) It imparts vigor to plants.
(iv) Provides mechanical energy to plants.
(v) Assists in photosynthesis of plants.
(vi) Helps plants in respiration.
(vii) Aids diffusion and osmosis in the plant body.
(viii) It forms wood in the plant body.
(ix) It participates in the formation of the main structure of the plant body.