what is the name of chloroplast containing parenchyma
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chlorenchyma is ur ans..
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Hi mate!
I hope this lengthy Text may Help you
Cross-section of a flax plant stem:
Pith
Protoxylem
Xylem I
Phloem I
Sclerenchyma (bast fibre)
Cortex
Epidermis
The ground tissue of plants includes all tissues that are neither dermal nor vascular. It can be divided into three types based on the nature of the cell walls.
Parenchyma cells have thin primary walls and usually remain alive after they become mature. Parenchyma forms the "filler" tissue in the soft parts of plants, and is usually present in cortex, pericycle, pith, and medullary rays in primary stem and root.
Collenchyma cells have thin primary walls with some areas of secondary thickening. Collenchyma provides extra mechanical and structural support, particularly in regions of new growth.
Sclerenchyma cells have thick lignified secondary walls and often die when mature. Sclerenchyma provides the main structural support to a plant.[1]
ParenchymaEdit
Parenchyma (/pəˈrɛŋkɪmə/]from Greekπαρέγχυμα parenkhyma, "visceral flesh" from παρεγχεῖν parenkhein, "to pour in" from παρα- para-, "beside", ἐν en-, "in" and χεῖν khein, "to pour") is a versatile ground tissue that generally constitutes the "filler" tissue in soft parts of plants. It forms, among other things, the cortex and pith of stems, the cortex of roots, the mesophyll of leaves, the pulp of fruits, and the endosperm of seeds. Parenchyma cells are living cells and may remain meristematic at maturity—meaning that they are capable of cell division if stimulated. They have thin but flexible cellulose cell walls, and are generally polyhedral when close-packed, but can be roughly spherical when isolated from their neighbours. They have large central vacuoles, which allow the cells to store and regulate ions, waste products, and water. Tissue specialised for food storage is commonly formed of parenchyma cells.
Cross section of a leaf showing various ground tissue types
Parenchyma cells have a variety of functions:
Their main function is to repair.
In leaves, they form the mesophyll and are responsible for photosynthesis and the exchange of gases,[5] parenchyma cells in the mesophyll of leaves are specialised parenchyma cells called chlorenchyma cells (parenchyma cells with chloroplasts).
Storage of starch, protein, fats, oils and water in roots, tubers (e.g. potatoes), seed endosperm (e.g. cereals) and cotyledons (e.g. pulses and peanuts)
Secretion (e.g. the parenchyma cells lining the inside of resin ducts)
Wound repair and the potential for renewed meristematic activity
Other specialised functions such as aeration(aerenchyma) provides buoyancy and helps aquatic plants in floating.
Chlorenchyma cells carry out photosynthesis and manufacture food.
The shape of parenchyma cells varies with their function. In the spongy mesophyll of a leaf, parenchyma cells range from near-spherical and loosely arranged with large intercellular spaces, to branched or stellate, mutually interconnected with their neighbours at the ends of their arms to form a three-dimensional network, like in the red kidney bean Phaseolus vulgaris and other mesophytes.These cells, along with the epidermal guard cells of the stoma, form a system of air spaces and chambers that regulate the exchange of gases. In some works the cells of the leaf epidermis are regarded as specialised parenchymal cells, but the modern preference has long been to classify the epidermis as plant dermal tissue, and parenchyma as ground tissue.
Shapes of parenchyma:
Polyhedral
Stellate (found in stem of plants and have well developed air spaces between them)
Elongated (found in pallisade tissue of leaf)
Lobed (found in spongy and pallisade mesophyyll tissue of some plants)
I hope this lengthy Text may Help you
Cross-section of a flax plant stem:
Pith
Protoxylem
Xylem I
Phloem I
Sclerenchyma (bast fibre)
Cortex
Epidermis
The ground tissue of plants includes all tissues that are neither dermal nor vascular. It can be divided into three types based on the nature of the cell walls.
Parenchyma cells have thin primary walls and usually remain alive after they become mature. Parenchyma forms the "filler" tissue in the soft parts of plants, and is usually present in cortex, pericycle, pith, and medullary rays in primary stem and root.
Collenchyma cells have thin primary walls with some areas of secondary thickening. Collenchyma provides extra mechanical and structural support, particularly in regions of new growth.
Sclerenchyma cells have thick lignified secondary walls and often die when mature. Sclerenchyma provides the main structural support to a plant.[1]
ParenchymaEdit
Parenchyma (/pəˈrɛŋkɪmə/]from Greekπαρέγχυμα parenkhyma, "visceral flesh" from παρεγχεῖν parenkhein, "to pour in" from παρα- para-, "beside", ἐν en-, "in" and χεῖν khein, "to pour") is a versatile ground tissue that generally constitutes the "filler" tissue in soft parts of plants. It forms, among other things, the cortex and pith of stems, the cortex of roots, the mesophyll of leaves, the pulp of fruits, and the endosperm of seeds. Parenchyma cells are living cells and may remain meristematic at maturity—meaning that they are capable of cell division if stimulated. They have thin but flexible cellulose cell walls, and are generally polyhedral when close-packed, but can be roughly spherical when isolated from their neighbours. They have large central vacuoles, which allow the cells to store and regulate ions, waste products, and water. Tissue specialised for food storage is commonly formed of parenchyma cells.
Cross section of a leaf showing various ground tissue types
Parenchyma cells have a variety of functions:
Their main function is to repair.
In leaves, they form the mesophyll and are responsible for photosynthesis and the exchange of gases,[5] parenchyma cells in the mesophyll of leaves are specialised parenchyma cells called chlorenchyma cells (parenchyma cells with chloroplasts).
Storage of starch, protein, fats, oils and water in roots, tubers (e.g. potatoes), seed endosperm (e.g. cereals) and cotyledons (e.g. pulses and peanuts)
Secretion (e.g. the parenchyma cells lining the inside of resin ducts)
Wound repair and the potential for renewed meristematic activity
Other specialised functions such as aeration(aerenchyma) provides buoyancy and helps aquatic plants in floating.
Chlorenchyma cells carry out photosynthesis and manufacture food.
The shape of parenchyma cells varies with their function. In the spongy mesophyll of a leaf, parenchyma cells range from near-spherical and loosely arranged with large intercellular spaces, to branched or stellate, mutually interconnected with their neighbours at the ends of their arms to form a three-dimensional network, like in the red kidney bean Phaseolus vulgaris and other mesophytes.These cells, along with the epidermal guard cells of the stoma, form a system of air spaces and chambers that regulate the exchange of gases. In some works the cells of the leaf epidermis are regarded as specialised parenchymal cells, but the modern preference has long been to classify the epidermis as plant dermal tissue, and parenchyma as ground tissue.
Shapes of parenchyma:
Polyhedral
Stellate (found in stem of plants and have well developed air spaces between them)
Elongated (found in pallisade tissue of leaf)
Lobed (found in spongy and pallisade mesophyyll tissue of some plants)
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