Which one of the following tissues is known as basic packing tissue an

Which one of the following tissues is known as basic packing tissue and found in xylem and phloem ?

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Collenchyma

Parenchyma

Sclerenchyma

Vessels

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UPSC NDA-2 – 2021

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Parenchyma tissue is composed of living cells that are typically isodiametric (roughly equal in diameter). These cells form the bulk of ground tissues in plants (cortex, pith) and are also present in xylem and phloem rays and parenchyma. Due to their widespread occurrence and roles in storage, secretion, and basic metabolic functions, they are often referred to as basic packing tissue.

Parenchyma cells are thin-walled and versatile. They are found throughout the plant body and participate in various functions like photosynthesis, storage, and secretion.

Collenchyma is a living support tissue providing mechanical support to growing stems and petioles. Sclerenchyma provides rigid support and strength to mature plant parts using thick, lignified walls (fibers and sclereids). Vessels are conducting elements in xylem responsible for water transport.

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