NEET BIOLOGY

Detailed explanation-1: -The cells of such meristems have the capacity to divide and self-perpetuate. The product, however, soon loses the capacity to divide and such cells make up the plant body. This form of growth wherein new cells are always being added to the plant body by the activity of the meristem is called the open form of growth.

Detailed explanation-2: -Like other multicellular organisms, plants grow through a combination of cell growth and cell division. Cell growth increases cell size, while cell division (mitosis) increases the number of cells.

Detailed explanation-3: -The constant dividing phase of cells at the shoot and root apex both indicate the meristematic phase of growth. The cells present in the shoot and root apex are meristematic cells. Meristematic cells are the only cells of plants that have a tendency to divide.

Detailed explanation-4: -The plant tissue in which new cells are continually being created is called meristematic tissues. These tissues are in a constant loop of separation that generally gives rise to a new type of cells.

Detailed explanation-5: -Meristem is responsible for the growth of plant. It is responsible for lengthening of roots, shoots. While intercalary meristem is responsible for the increase in the girth of the plant.