Q.Draw and label the parts of regions of root.

A root shows four successive zones from its tip inward: the root cap, the region of cell division, the region of elongation, and the region of maturation.

A typical root, examined longitudinally from the apex (tip) backward, shows the following four regions:

1. Root cap: A thimble-like structure covering and protecting the delicate, actively-dividing root apical meristem as it pushes through the soil; its outer cells are continuously worn away and replaced from within.

2. Region of meristematic activity (region of cell division): Located just behind the root cap, a few millimetres long, consisting of small, thin-walled cells with dense cytoplasm that divide repeatedly, adding new cells to both the root cap and the region above.

3. Region of elongation: Situated just above the meristematic zone; here the newly formed cells increase rapidly in length (elongate), which is the main region responsible for pushing the root tip further into the soil.

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