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Assertion The collenchyma is a thick-wal...

Assertion The collenchyma is a thick-walled living tissue.
Reason The collenchyma is thickened due to deposition of pectin.

A

Both A and R are true and R is the correct explanation of A

B

Both A and R are true, but R is not the correct explanation of A

C

A is true, but R is false

D

A and R are false

Text Solution

Verified by Experts

The correct Answer is:
A
Collenchyma is a specialised type of parenchyma which acts as a supporting tissue. The cell walls are irregularly thickened due to deposition of cellulose and pectin. It is a living tissue.
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Knowledge Check

  • The collenchyma is thickened due to the deposition of

    A
    Lignin
    B
    Cutin
    C
    Suberia
    D
    Pectin

  • Assertion : collenchyma is thick walled dead tissue Reason: collenchymatous cells show thickening of pectin

    A
    If both assertion and reason are true and the reason is a corect explanation of the assertion
    B
    If both assertion and reason are true but reason is not a correct explanation of the assertion
    C
    If the assertion is false but reason is true
    D
    If both the assertion and reason are false

  • Thickenings in collenchyma is mainly due to depostion of -

    A
    Cellulose
    B
    Pectin
    C
    Lignin
    D
    Suberin

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    The wall of Human heart is thick due to presence of :-

    Collenchyma tissue is present in

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    The cell wall thickening material in collenchyma is

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