matic tissues.What are meristematic tissues? Describe diagrammatically different types of meriste
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The meristem is a type of tissue found in plants. It consists of undifferentiated cells capable of cell division. Cells in the meristem can develop into all the other tissues and organs that occur in plants. These cells continue to divide until a time when they get differentiated and then lose the ability to divide. Meristematic tissues are responsible for growth in plants. Cells in these tissues can divide and form new cells. The meristem (also called meristematic tissue) is responsible for the growth of plants. The cells of meristematic tissue are usually small and thin-walled (with primary cell wall only). They are compact, leaving no intercellular spaces in between. They are a parenchymatous-type of cell. The meristematic tissues are living and thin-walled. The protoplasm of the cells is very dense. The meristematic tissues heal the injuries of an injured plant. These cells do not store food. Permanent tissues are made of meristematic cells, that has definite form and shape and have lost the power to divide and differentiate and are of three types- simple, complex and special. The simple tissues are parenchyma, sclerenchyma and collenchyma. There are three primary meristems: the protoderm, which will become the epidermis; the ground meristem, which will form the ground tissues comprising parenchyma, collenchyma, and sclerenchyma cells; and the procambium, which will become the vascular tissues (xylem and phloem). Meristematic tissues are found in many locations, including near the tips of roots and stems (apical meristems), in the buds and nodes of stems, in the cambium between the xylem and phloem in dicotyledonous trees and shrubs, under the epidermis of dicotyledonous trees and shrubs (cork cambium). A meristem may be primary or secondary. An example of a primary meristem is the apical meristem. Meristematic tissue has cells small in size and isodiametric in shape. Permanent tissue has cells large in size and their shape varies. Cells are compactly arranged without having intercellular spaces. Cells are arranged loosely in the parenchyma and compactly in sclerenchyma. The cells have no intercellular space. The zone where these cells exist is known as meristem. The cells of the meristematic tissue divide actively to form specialized structures such as buds of leaves and flowers, tips of roots and shoots, etc. These cells help to increase the length and girth of the plant. Plant tissue whose cells actively divide to form new tissues that cause the plant to grow. The originally undifferentiated cells of the meristem can produce specialized cells to form the tissues of roots, leaves, and other plant parts.