Some vascular bundles are described as open because these

  • Option 1)

    are surrounded by pericycle but not endodermis

  • Option 2)

    are capable of producing secondary xylem and phloem

  • Option 3)

    possess conjunctive tissue between xylem and phloem

  • Option 4)

    are not surrounded by pericycle

 

Answers (1)

 

Vascular Bundles -

Xylem, phloem and cambium are part of vascular bundles and may be following type:

  • Radial- When xylem and phloem are arranged on different radii alternating with each other. Example: Roots The development of xylem is centripetal or exarch.
  • Conjoint- Xylem and phloem are present on the same radius. It can be collateral or biocollateral.If cambium is present between xylem and phloem it is called open. It cambium is absent it is called closed.

- wherein

Vascular Bundles

 

 


Option 1)

are surrounded by pericycle but not endodermis

This solution is incorrect 

Option 2)

are capable of producing secondary xylem and phloem

This solution is correct 

Option 3)

possess conjunctive tissue between xylem and phloem

This solution is incorrect 

Option 4)

are not surrounded by pericycle

This solution is incorrect 

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