PERMANENT TISSUE Meaning and
Definition
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Permanent tissue refers to a type of plant tissue that has completed its growth and has taken on a relatively fixed structure and function. It is derived from meristematic tissue, which is the undifferentiated precursor tissue responsible for cell division and growth. In contrast, permanent tissue undergoes specialization and differentiation, resulting in cells that are no longer capable of dividing.
Permanent tissue can be divided into two main categories: simple permanent tissue and complex permanent tissue. Simple permanent tissue consists of cells with a similar structure and function, while complex permanent tissue consists of multiple cell types with different functions and organization.
Simple permanent tissue can further be classified into three types: parenchyma, collenchyma, and sclerenchyma. Parenchyma cells are loosely packed and have thin cell walls, performing functions such as photosynthesis, storage, and secretion. Collenchyma cells have thickened cell walls and provide flexible support to growing plant parts. Sclerenchyma cells have thick, lignified cell walls and provide rigid structural support to mature plant parts.
Complex permanent tissue includes xylem and phloem. Xylem is responsible for the transport of water and minerals from the roots to the rest of the plant, while phloem transports sugars and other organic substances. These tissues are composed of multiple cell types, such as vessel elements, tracheids, sieve tube elements, and companion cells, each serving a specific role in the overall function of the tissue.
Overall, permanent tissue represents a stage in plant development where cells have specialized and differentiated, thus acquiring specific functions and structures necessary for the plant's growth, support, and efficient transport of substances.
Common Misspellings for PERMANENT TISSUE
- oermanent tissue
- lermanent tissue
- -ermanent tissue
- 0ermanent tissue
- pwrmanent tissue
- psrmanent tissue
- pdrmanent tissue
- prrmanent tissue
- p4rmanent tissue
- p3rmanent tissue
- peemanent tissue
- pedmanent tissue
- pefmanent tissue
- petmanent tissue
- pe5manent tissue
- pe4manent tissue
- pernanent tissue
- perkanent tissue
- perjanent tissue
- permznent tissue
Etymology of PERMANENT TISSUE
The word "permanent" in the term "permanent tissue" comes from the Latin word "permanēre", which means "to remain through" or "to endure". The term "permanent tissue" was coined by botanists to describe plant tissues that remain in a specialized form throughout the life of the plant, as opposed to meristematic tissues that continuously divide and differentiate into new cells. Thus, "permanent tissue" refers to plant tissues that endure and maintain their structure and functions long-term.
