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Give the role of collenchyma and scleren...

Give the role of collenchyma and sclerenchyma in providing support to the plant.

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**Step-by-Step Text Solution:** 1. **Definition of Collenchyma:** - Collenchyma is a type of plant tissue composed of elongated living cells. These cells have thickened corners due to the presence of cellulose and pectin. 2. **Role of Collenchyma:** - The primary function of collenchyma is to provide flexibility to the plant. This flexibility allows plants to withstand various stresses, such as wind and bending, without breaking. - Collenchyma also provides tensile strength, which helps the plant maintain its structure while allowing for growth and movement. ...
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Collenchyma || Sclerenchyma

Collenchyma || Sclerenchyma

Knowledge Check

  • Collenchyma differs from sclerenchyma in

    A
    Having thick walls
    B
    Retaining protoplasm at maturity
    C
    Being meristematic
    D
    Having a wide lumen

  • Collenchyma differs from sclerenchyma in

    A
    being dead
    B
    possessing protoplasm
    C
    the ability to not dedifferentiate
    D
    All of the above

  • Collenchyma differs from sclerenchyma

    A
    Retaining protoplasm at maturity
    B
    Having thick walls
    C
    Having wide lumen
    D
    Being meristematic

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    Assetion : collenchyma, sclerenchyma and xylem provide mechanical suppot to the plant body ltbvrgt Reason: Their cell walls are thick and lignified

    Mention the roles of parenchyma, collenchyma and sclerenchyma.

    Give two functions of collenchyma.

    Read the passage and answer the questions that follow: Simple tissues are also known as ground tissues. They include the tissues known as parenchyma, collenchyma, and sclerenchyma. The parenchyma tissue is composed of parenchyma cells, which are found throughout the plant. They are particularly abundant in the stems and roots. The leaf cells that carry out photosynthesis are also parenchyma cells. Unlike many other plant cells, parenchyma cells are alive at maturity and retain the ability to divide. They perform many functions. Some are special ised for photosynthesis, some for storage, and oth ers for secretion and transport. Like parenchyma cells, collenchyma cells are alive at maturity. They differ from parenchyma cells in that they have thick cell walls. The col lenchyma tissue is most often found in the form of strands or cylinders of cells in stems and leaves. The thick cell walls of collenchyma cells provide support to these plant structures. The strands of tissues in celery are collenchyma tissues. Even collenchyma cells retain the ability to divide. Sclerenchyma consists of thick-walled dead cells. It possesses extremely thick secondary walls due to uniform deposition of lignin. It provides mechanical strength. The cells may occur singly or in groups and may be long and fibrous or stony.Stone cells (sclereids) are found in seed coats and some fruits (e.g, pear). What type of tissue accounts for the crunch when you eat celery?

    Collenchymas differs from sclerenchyma in

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