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Gymnosperm wood is non-porous because it...

Gymnosperm wood is non-porous because it
(a) lacks vessels
(b) contains tracheae
(c) has abundant fibres
(d) contains no fibres.

A

lacks vessels

B

Contains tracheae

C

Has abundant fibres

D

Contains no fibres

Text Solution

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The correct Answer is:
A
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ALLEN-STRUCTURAL ORGANISATION IN PLANTS (MOPRHOLOGY OF FLOWERING PLANTS & ANATOMY OF FLOWERING PLANTS)-Exercise-I (Primary Internal Structure to Secondary Growth)
  1. Cork is an execellent material for making bottle stopper because it is

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  2. In monocot stems, secondary growth cannot occur because vascular bundl...

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  3. Gymnosperm wood is non-porous because it (a) lacks vessels (b) cont...

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  4. porous wood is characterised by

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  5. Outer layer of bark is (a) epidermis (b) rhytidome (c) phelloderm...

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  6. secondary growth is the production of

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  7. each annual ring or growth ring consists of two strips of

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  8. The intarfascicular cambium is situated

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  9. In which of the following monocots secondary growth is present ?

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  10. Vascular tissue having abundant vessels and fibres is

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  11. amount of secondary xylem as compared to secondary pholem formed eve...

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  12. Monocot root differs from dicot root in having

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  13. Which one increases due to cambium:

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  14. Autumn wood is distinguishable from spring wood in having

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  15. Palisade parenchyma is present on both sides in

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  16. Vascular cambium forms :- (a) Secondary xylem & secondary phloem (b)...

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  17. There is no result of 'Girdling Experiment ' in monocot plant is due ...

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  18. The collateral open vascular bundles and eustele are found in

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  19. Radial vascular bundles are found in :

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  20. Casparian bands are found in

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