Permanent tissue is characterized by cells that have lost the ability to divide and have differentiated to perform specific functions.
Key Characteristics of Permanent Tissue:
- Derived from Meristematic Tissue: Permanent tissues originate from the division and differentiation of meristematic cells, which are responsible for plant growth.
- Loss of Division Capacity: The cells of permanent tissues have matured and differentiated, resulting in a loss of the ability to divide. This differentiation allows them to specialize in particular roles.
- Differentiation for Specific Functions: These tissues are specialized to perform specific functions in the plant, such as photosynthesis, transport of water and nutrients, or providing structural support.
- Varied Cell Shapes and Sizes: The shape and size of permanent tissue cells vary depending on their function. For example, elongated cells are suitable for transport, while irregularly shaped cells may be ideal for storage.
- Cell Wall Thickness: Cell walls can vary in thickness depending on the tissue's function. Tissues providing structural support often have thickened cell walls.
- Presence of Large Vacuoles: Cells of permanent tissue typically have large vacuoles, which store water, nutrients, and waste products.
In essence, permanent tissue represents the mature, functional tissues of a plant, providing structure, performing vital processes, and supporting the plant's overall survival.
