Meristematic cells are characterized by:
Meristematic cells are a group of cells that are found in plants and are responsible for growth and development. They are characterized by several features that distinguish them from other types of cells in the plant body. These features include thin cellulosic cell walls, dense protoplasm, and prominent nuclei.

Thin cellulosic cell walls:
One of the main characteristics of meristematic cells is their thin cellulosic cell walls. Cellulose is a complex carbohydrate that provides structural support to plant cells. In meristematic cells, the cell walls are thin and flexible, allowing for easy cell division and growth. These thin cell walls also allow for efficient transport of nutrients and water between cells.

Dense protoplasm:
Meristematic cells have a dense protoplasm, which refers to the living contents of the cell, including the cytoplasm and all its organelles. The dense protoplasm in meristematic cells is essential for carrying out various cellular processes, such as protein synthesis, enzyme activity, and energy production. The high concentration of organelles and molecules in the protoplasm ensures that the cell has all the necessary components for growth and development.

Prominent nuclei:
Meristematic cells have large and prominent nuclei. The nucleus is the control center of the cell, containing the genetic material (DNA) that regulates cell division and growth. In meristematic cells, the prominent nuclei are actively involved in the replication and distribution of genetic material during cell division. This ensures that the daughter cells receive the necessary genetic information for proper growth and development.

Summary:
In summary, meristematic cells are characterized by thin cellulosic cell walls, dense protoplasm, and prominent nuclei. These features enable meristematic cells to undergo rapid cell division and growth, contributing to the overall growth and development of plants.