Answer :

a) This is the shoot apex meristem of a dicotyledonous plant.


The shoot apical meristem is present at the tip of the plant stem, has two functions:


a) it is the point of source of new cells needed for growth stem


b) small cellular outgrowths occurs here called leaf primordia that later develop into leaves


The different parts labelled 1,2, 3 are:


1: Leaf primordium


2: Axillary bud: During the formation of leaves and elongation of stem, some cells which are left behind make the axillary bud: forms a branch or a flower.


3: Shoot apical meristem


b) If part 1 is removed from the plant, then the apical bud is inhibited while there is growth of lateral buds.



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