Question : Name and state briefly one function each of any three phyto

1.	Question : Name and state briefly one function each of any three phyto - hormones.
Answer» Solution :(i) Auxin : Promotes cell elongation and division, also helps in the fromation of ROOTS and seedless FRUITS. (ii) GIBBERELLINS : These are the hormones that help in the growth of the stem and flower. (iii) Cytokinins : It promote cell dividio and delay ageing in leaves. It reduces apical dominance and also stimulates the leaf EXPANSION. (iv) Abscisic acid : It is growth - INHIBITOR hormone that reverses the growth - promoting effects of auxin and gibberellins. It causes dromancy of seeds, wilting of leaves, closing of stomata and loos of proteins and chlorophyll. (v) Ethylene : it promotes tranverse growth, alos promotes senescene and abscission of leaves. it acts as an essential hormone for the ripening of fruits.

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