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In a plant organ which is convered by pe...

In a plant organ which is convered by periderm and in which the stomata are absent, some gaseous exchange still takes place through

A

Bulliform cells

B

Lenticles

C

Pneumatophores

D

Trichomes

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The correct Answer is:
B
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AAKASH INSTITUTE ENGLISH-ANATOMY OF FLOWERING PLANTS -ASSIGNMENT SECTION A (OBJECTIVE TYPE QUESTIONS)
  1. Which of the following is not true for the vascular bundles of monocot...

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  2. The epidermis in a dorsiventral leaf (a) Covers both adaxial and aba...

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  3. Choose correct option w.r.t. spongy mesophyll in dicot leaf.

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  4. The size of vascualr bundles in a dorsiventral leaf is dependent on

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  5. The stomata in an isobilateral leaf

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  6. During water stress, the bulliform cells (a) Become turgid (b) Bec...

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  7. The tissue which participate in the secondary growth is

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  8. The infrascicular cambium

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  9. The cambial ring is generally (Option 1) More active on the inner s...

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  10. In a dicot stem, the interfasicular cambium strip arises

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  11. Wood is

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  12. An annual ring is formed by

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  13. Growth rings are well marked in trees growing in

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  14. Which of the following is the function of heartwood?

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  15. The heartwood cannot conduct water because of

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  16. Besides phellem, phellogen, root periderm comprises of

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  17. The feature which is common to both heartwood and sapwood is

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  18. In a plant organ which is convered by periderm and in which the stomat...

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  19. Bark refers to all tissues exterior to the

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  20. Which of the following is true for the dicot roots?

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