Question

Write conclusion about the meristematic tissue depending upon the reason where they are present.


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Answer 1

Answer:

Meristems are specialised regions of plant growth. It helps the plant to grow. The meristems mark the regions where active cell division and rapid division of cells take place. Meristems are of three types depending on their location.

# Apical meristem:

It is present at the root apex and the shoot apex. The shoot apical meristem is present at the tip of the shoots and its active division results in the elongation of the stem and formation of new leaves. The root apical meristem helps in root elongation.

# Intercalary meristem:

The intercalary meristems are located at the internodes or the base of the leaves. The intercalary meristems help in increasing the length of the internode. This is usually seen in monocotyledonous plants.

# Lateral meristem:

The lateral meristems are present on the lateral side of the stem and root of a plant. These meristems help in increasing the thickness of the plants..................

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Answer 2

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This chapter deals with meristems and their importance in the organization of the primary and secondary plant body. The meristem concept is explained with particular reference to initial stem cells and paremacy of initials. A classifications of meristem sis provided, followed by the organization of SAM, RAM and vascular cambium. The genetic basis of the organization and behaviour of these three meristems is dealt with in detail along with their hormonal control. An account on intercalary meristem, metmers and modulus, origin of nodes and internodes, axillary buds, apical dominance, primary and secondary thickening meristems and phellogen is also provided.