Name the occur and function of following tissue 1 perenchyma 2 chlarchyma 3 collenchyma
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Parenchyma:
Plants have numerous types of specialized cells that are specifically designed to carry out life functions. The word 'parenchyma' just means the bulk of a thing, but in plants specifically, parenchyma cells are thin-walled cells that make up the inside of many non-woody plant structures including stems, roots, and leaves.
Parenchyma forms the cortex (or main filling) of stems, the inner layer of cells within a leaf, the endosperm material that feeds a growing seed, and the pulp of a fruit.
Function of Parenchyma in Plants
Parenchyma cells can serve many functions. Their role is largely based on their location in the plant; that can determine whether they will serve in storage, photosynthesis, or damage repair.
Parenchyma cells have large central vacuoles, which are large, membrane-enclosed organelles found in many plant cells. These vacuoles are able to be used by plant cells to store materials and to maintain optimal pressure within the cell of the plant.
Collenchyma Cells:
Collenchyma may form cylinders or occur as discrete strands and is one of the three ground, or fundamental, tissues in plants, together with parenchyma (living thin-walled tissue) and sclerenchyma (dead support tissue with thick cell walls).
An important feature of collenchyma is that it is extremely plastic—the cells can extend and thus adjust to increased growth of the organ. The tissue is found chiefly in the cortex of stems and in leaves and is the primary supporting tissue for many herbaceous plants. In plants with secondary growth, the collenchyma tissue is only temporarily functional and becomes crushed as woody tissue develops. It often constitutesthe ridges and angles of stems and commonly borders the veins in eudicot leaves. The “strings” in stalks of celery are a notable example of collenchyma tissue.
Plants have numerous types of specialized cells that are specifically designed to carry out life functions. The word 'parenchyma' just means the bulk of a thing, but in plants specifically, parenchyma cells are thin-walled cells that make up the inside of many non-woody plant structures including stems, roots, and leaves.
Parenchyma forms the cortex (or main filling) of stems, the inner layer of cells within a leaf, the endosperm material that feeds a growing seed, and the pulp of a fruit.
Function of Parenchyma in Plants
Parenchyma cells can serve many functions. Their role is largely based on their location in the plant; that can determine whether they will serve in storage, photosynthesis, or damage repair.
Parenchyma cells have large central vacuoles, which are large, membrane-enclosed organelles found in many plant cells. These vacuoles are able to be used by plant cells to store materials and to maintain optimal pressure within the cell of the plant.
Collenchyma Cells:
Collenchyma may form cylinders or occur as discrete strands and is one of the three ground, or fundamental, tissues in plants, together with parenchyma (living thin-walled tissue) and sclerenchyma (dead support tissue with thick cell walls).
An important feature of collenchyma is that it is extremely plastic—the cells can extend and thus adjust to increased growth of the organ. The tissue is found chiefly in the cortex of stems and in leaves and is the primary supporting tissue for many herbaceous plants. In plants with secondary growth, the collenchyma tissue is only temporarily functional and becomes crushed as woody tissue develops. It often constitutesthe ridges and angles of stems and commonly borders the veins in eudicot leaves. The “strings” in stalks of celery are a notable example of collenchyma tissue.
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