Explain Meristematic Cells.

The word meristem is derived from the Greek word "Meristos" meaning divisible.

Meristematic cells, or simply meristems, are a group of cells that are present at the shoot and root tips of plants. They are considered as stem cells, which remain forever young and divide actively throughout the life of the plant. It forms epidermis which protects the plants from any mechanical shocks.

Collectively, meristem cells make up three types of meristematic tissues, and they are:

1. Apical meristems (at the tips)

2. Lateral meristems (in the middle)

3. Basal/Intercalary meristems (present in some plants) (at the sides).