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  • Please help. Pholem in gymnosperms lacks

Pholem in gymnosperms lacks:

  • Option 1)

    Albuminous cells and sieve cells

  • Option 2)

    Sieve tube only

  • Option 3)

    Companion cells only

  • Option 4)

    Both sieves tubes and companion cells

 

Answers (1)

best_answer

 

Elements of Phloem -

Sieve element, campanion cells, phloem parenchyma and phloem fibres are four elements of phloem.

 

 

The pholem of gymnosperm possess sieve tubes sieve tube elemments which are living and thin - walled. However, it lacks companion cells. This is the major difference between angiosperms and gymnosperms as companion cells are present in angiosperms but absent in gymnosperms.

 


Option 1)

Albuminous cells and sieve cells

Option 2)

Sieve tube only

Option 3)

Companion cells only

Option 4)

Both sieves tubes and companion cells

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