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exchange of gases between air and the in...

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

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The correct Answer is:
D
Exchange of gases between air and the internal tissues of older corky stems takes place though lenticles.
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A2Z-ANATOMY OF FLOWERING PLANTS-Section C : Previous Years' Examination Question (NEET/AIPMT Questions )
  1. The elements of xylem tissue that store tannins are

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  2. Find out the wrong statement about angiosperm roots

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  3. exchange of gases between air and the internal tissues of older corky ...

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  4. Commericial cork is obtained from

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  5. A stele with a central core of xylem surrounded by phloem is called or...

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  6. Tracheids differ from other tracheary elements in

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  7. you are given a fairly old piece of dicot stem and a dicot root. Which...

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  8. Bicollateral vascular bundles occur in which of the following families...

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  9. Lenticels are involved in

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  10. Age of tree can be estimated by

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  11. Jute , flax and hemp are fibres opbtained from

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  12. Which one of the following is present in the stem but not in the root ...

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  13. Read the different components from (A) to (D) in the list given below ...

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  14. Vascular bundle in monocotyledons are considered closed, when

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  15. A major characteristic of the monocot root is the presence of

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  16. Specialised epidermal cells surrounding the guards cells are called

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  17. cortex lies between

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  18. the baloon- shaped structuces called tyloses

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  19. The vascular cambium normally gives rise to

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  20. Which of the following is made up of dead cells

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