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In woody trees, the exchange of gases be...

In woody trees, the exchange of gases between the outer atmosphere and the internal tissue of the stem takes place through

A

Aerenchyma

B

Stomata

C

Pneumatophores

D

Lenticels

Text Solution

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The correct Answer is:
D
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Knowledge Check

  • Which of the following statements are incorrect? (i). Secondary growth usually occurs in monocotyledons. (ii). Bark refers to all tissues interior to vascular cambium. (iii). Lenticels permit the exchange of gases between the outer atmosphere and the internal tissue of the stem. (iv). Annual rings give an estimate of the age of the tree.

    A
    (i) and (ii) only
    B
    (i) and (iii) only
    C
    (i) and (iv) only
    D
    (ii) and (iv) only

  • exchange of gases between air and the internal tissues of older corky stems takes place through

    A
    sieve plates
    B
    pits
    C
    stomata
    D
    lenticels.

  • Opening in the core tissue which permit ex-change of gas between atmosphere and internal tissue is called

    A
    Complementary tissue
    B
    Peridem
    C
    Lenticel
    D
    Bark

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