Functions of Leaves:- The leaves have many primary and secondary functions. Primary Functions:- (a) The most important function of leaves is photosynthesis with the help of sunlight and carbon dioxide. (b) Leaves contain stomata through, which gaseous exchange occurs. (c) Leaves are the site of transpiration. (d) They protect axillary and terminal bud from mechanical injury and desiccation. Secondary Functions:- (a) Leaves store food as in the leaf base, e.g., Onion. (b) Leaves change into phyilodes to protect against transpiration. (c) Storage of water in the cells of some succulent plants, e.g., Aloe. (d) In Salvinia, one leaf of each node is changed into roots that act as balancer for floating. (e) In some leaves like of Euphorbia, the young leaves are brightly coloured to attract insects for pollination. 217 views14:42
