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The cork cambium, cork and secondary cor...

The cork cambium, cork and secondary cortex are collectively called

A

phellogen

B

periderm

C

Phellem

D

phelloderm

Text Solution

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The correct Answer is:
b
The periderm is a secondary protective structure and is made up of cork cambium (phellogen ) , cork (phellem) and secondary (phelloderm).
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NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)-ANATOMY OF FLOWERING PLANTS-Exercise
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  2. Closed vascular bundles lack

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  3. The cork cambium, cork and secondary cortex are collectively called

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  4. Ground tissue includes

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  5. The chief water conducting elements of xylem in gymnosperms are

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  6. Which one of the following is not a lateral meristem

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  7. heart wood differs from sapwood in

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  8. Palisade parenchyma is absent in leaves of

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  9. Anatomically fairly old dicotyledonous root is distinguished from the ...

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  10. The annular and spirally thickened conducting elements generally deve...

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  11. In barley stem vascular bundles are

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  12. The length of different internodes in a culm of sugarcane is variable ...

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  13. Vascular tissues in flowering plants develop from

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  14. Passage cells are thin walled cells found in

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  15. For a critical study of secondary growth in plants, which one of the...

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  16. A common structural feature of vessel elements and sieve tube elements...

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  17. In a woody dicotyledonous tree, which of the following parts wall main...

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  18. In a longitudinal section of a root, starting from the tip upward, th...

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  19. Chlorenchyma is known to develop in the

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  20. Apical meristem of root is present

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