Write short note on simple parmanent tissue.
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Answer:
In simple words, the permanent tissues in a plant are those tissues that contain nondividing cells. The cells are also modified to perform specific functions in the plants. The cells of the permanent tissue are derived from the meristematic tissue. The permanent tissue cells are also fully differentiated.
Explanation:
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Answer:
Simple Permanent Tissue in Plants
Introduction to Simple Permanent Tissue
Simple permanent tissue and complex permanent tissue are formed when meristematic tissue lose their ability to divide after an extent. Simple permanent tissue is classified into parenchyma, collenchyma & sclerenchyma tissue.
Parenchyma
simple permanent tissue
Simple Permanent Tissue : Parenchyma
This type of simple permanent tissue cells are alive, thin walled, loosely held and possess large intercellular spaces. Also, parenchyma cells stores food and provides support to plant. If parenchyma is consist of chlorophyll, then these cells are capable of preparing food for plants through the process of photosynthesis. Such parenchyma cells are known as chlorenchyma. Aquatic plant floats on water, in this case, parenchyma cells have air filled in the intercellular spaces. Thus, air filled parenchyma cells are known as aerenchyma.
Epidermis:
Simple permanent tissue
Epidermis
It is outermost layer of plant body. As a result, it covers the surface of total plant body. Most of cells in epidermis are parenchyma cells. Epidermis is made up of single layer of cells without intercellular spaces. Moreover, structure of these cells are flattened, also, outer wall is thicker than inner wall of cell. The main function of epidermis is to protect the plants from mechanical injury, entry of fungi, winds, etc. Also, in root, epidermis show hair like structure which absorbs nutrients and water from soil. In desert areas, epidermis of plants are comparatively thick, hence, it prevents loss of water from plant body.
Epidermis also consist of kidney shaped cells called stomata. Stomata is essential for exchange of gases in plants and it is responsible for transpiration i.e. water loss from the plant body
Explanation:
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