AP BIOLOGY

Detailed explanation-1: -A meristem is the tissue in most plants containing undifferentiated cells (meristematic cells), found in zones of the plant where growth can take place. Meristematic cells constantly divide to give rise to various organs of the plant and keep the plant growing.

Detailed explanation-2: -Thus, the correct answer is ‘True. ‘

Detailed explanation-3: -Growth in plants is restricted to certain regions, because the dividing cells or meristematic cells are localised and not distributed throughout the plant body. The growth due to meristematic cells occurs by an increase in number of cells and not by increase in volume of existing cells.

Detailed explanation-4: -Complete answer:-Meristematic tissues are not permanent tissue. Thus, option A is incorrect.-Based on the region where the meristematic tissues are present, they are known as lateral, intercalary, and apical meristems.

Detailed explanation-5: -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.