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ANATOMY OF FLOWERING PLANTS, Points To Remember :, , « Study of internal structure of plant is called anatomy., * Inplants cells are the basic unit., * Cells organized into tissues and tissues organized into organs., , THE TISSUES :, , « Agroup of cells having common origin and perform one function., + Plant tissues are classified into two types:, o Meristematic tissue., , o Permanent tissue, , Meristematic tissues :, , * Growth in plants is restricted to specific region> with active cell division called, meristems., « Different types of meristems are:o Apical meristem:, * Occurs in the shoot avid ret tips., «Primary meristem, « Increase the lengrinot piant, o Intercalary meristerr.:, «Present in-beiweenmature tissues., «Primary meristem, * Occurs in gi'asses and regenerate parts removed by grazing., o Lateral meristem:, * Occurs ia the mature regions of roots and shoots., * Also known as secondary meristem., «Responsible for producing secondary tissues,, * Fascicular vascular cambium, interfascicular cambium and cork, cambium are example of lateral meristem., « Axillary bud :, o During formation of leaves and elongation of stem, some cells ‘left behind’, from shoot apical meristem, constitute the axillary bud., o Present in the axils of leaves and are capable for forming a branch or a, flower., , , , Permanent tissues :, , « Cells produced from primary or secondary meristem stop dividing and, differentiated structurally and functionally, termed as permanent cells., , * Agroup of permanent cell constitutes the permanent tissues., , « Permanent tissues having similar in structure and function are called simple, tissues.