Parenchyma is a simple plant tissue composed of living cells with relatively thin primary cell walls. These cells are versatile and can be found in various parts of the plant, including leaves, stems, roots, and fruits. Parenchyma cells play multiple roles, such as photosynthesis (in leaf parenchyma), storage of nutrients, and healing of wounds. They often have a large central vacuole and a prominent nucleus. Parenchyma cells are typically isodiametric, meaning they are roughly spherical or polyhedral in shape.
2. Sclerenchyma:
Sclerenchyma is another type of plant tissue characterized by thick, rigid, and lignified cell walls. Unlike parenchyma, sclerenchyma cells are usually dead at maturity. Their primary function is to provide mechanical support and protection to the plant. They are commonly found in regions requiring structural strength, such as the stems, bark, and seed coats. Sclerenchyma cells can have various shapes but are often elongated and fibrous, forming fibers, or shorter and more stony, forming sclereids.
Parenchyma is the simple permanent ground tissues that form the bulk of the plant tissues, such as the soft part of leaves, fruit pulp, and other plant organs.
2. Sclerenchyma is a type of permanent tissue. They are dead, long, thin narrow cells with thickened walls without any internal space.
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Answer:
1. Parenchyma:
Parenchyma is a simple plant tissue composed of living cells with relatively thin primary cell walls. These cells are versatile and can be found in various parts of the plant, including leaves, stems, roots, and fruits. Parenchyma cells play multiple roles, such as photosynthesis (in leaf parenchyma), storage of nutrients, and healing of wounds. They often have a large central vacuole and a prominent nucleus. Parenchyma cells are typically isodiametric, meaning they are roughly spherical or polyhedral in shape.
2. Sclerenchyma:
Sclerenchyma is another type of plant tissue characterized by thick, rigid, and lignified cell walls. Unlike parenchyma, sclerenchyma cells are usually dead at maturity. Their primary function is to provide mechanical support and protection to the plant. They are commonly found in regions requiring structural strength, such as the stems, bark, and seed coats. Sclerenchyma cells can have various shapes but are often elongated and fibrous, forming fibers, or shorter and more stony, forming sclereids.
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Answer:
Parenchyma is the simple permanent ground tissues that form the bulk of the plant tissues, such as the soft part of leaves, fruit pulp, and other plant organs.
2. Sclerenchyma is a type of permanent tissue. They are dead, long, thin narrow cells with thickened walls without any internal space.