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Which of the following has porous wood?

Option: 1

Mango tree


Option: 2

Cycas tree


Option: 3

Peepal tree


Option: 4

Only a and c


Answers (1)

best_answer

 

 

Elements of Xylem - Tracheids and Vessels -

Vessels:

  • These arise from procambium during the primary growth and from vascular cambium during secondary growth.
  • The pattern of secondary wall deposition is determined by the microfibrils.
  • Vessels are made up of vessel elements placed one over the other.
  • Vessel elements have perforated end walls. 
  • Hence, vessels are multicellular pipe-like structures.
  • They have comparatively a wider lumen than tracheids.
  • At maturity, they are devoid of protoplasm and are dead.
  • In pteridophytes and gymnosperms, the vessels are absent. Their wood is called the non-porous wood.
  • In angiosperms, the vessels are present. Their wood is called porous wood.

 

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Mango and peepal trees are angiosperms. They have porous wood.

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chirag

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