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The annular and spirally thickened condu...

The annular and spirally thickened conducting elements generally develop in the protoxylem when the root or stem is

A

Differentiating

B

Maturing

C

Elongating

D

Widening

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The correct Answer is:
B
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MOTION-ANATOMY OF FLOWERING PLANTS-Excercise - 3 AIPMT & NEET Previous Year Questions
  1. Vascular tissues in flowering plants develop from

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

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

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  4. In barley stem vascular bundles are

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  5. Palisade parenchyma is absent in leaves of

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  6. Reduction in vascular tissue mechanical tissue and cuticle is charac...

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

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

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

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  10. heart wood differs from sapwood in

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  11. Transport of food material in higher plants takes place through

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  12. Ground tissue includes

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

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  14. Function of companion cells is

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  15. Some vascular bundles are described as open because these

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  16. Gymnosperms are also called soft wood spermatophytes because they lack

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  17. Water containing cavities in vascular bundles are found in

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  18. Closed vascular bundles lack

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  19. Companion cells are closely associated with :

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  20. The cambium which produces cork is known as Or The common bottle c...

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