Cortex is the region found between

  • Option 1)

    epidermis and stele

  • Option 2)

    pericycle and endodermis

  • Option 3)

    endodermis and pith

  • Option 4)

    endodermis and vascular bundle

 

Answers (1)

As learnt in

Stele -

The Stele is the whole central mass of vascular tissue (vascular cylinder) with or without pith surrounded by endodermis. Steler system is started from pteridophytes.

Stele

Stele

- wherein

In order of evolution types of stele are: protostele (most primitive and simple), siphonostele. Solenostele, dictyostele, eustele and atactostele.

 

 

Cortex and its type -

Cortex lies in between epidermis and pericycle which is further divided into hypodermis, general cortex and endodermis-

* Hypodermis - It is collenchyma in dicot stem & sclerenchyma in monocot.

* General cortex - Parenchyma and it stores food.

* Endodermis (starch sheath) - Made up of parenchymatous barrel-shaped. Endodermal cells of roots are known as Casparian strips. 

-

 

 Stele =pericycle+vascular tissue +pith

 

 


Option 1)

epidermis and stele

Correct option

Option 2)

pericycle and endodermis

Incorrect option

Option 3)

endodermis and pith

Incorrect option

Option 4)

endodermis and vascular bundle

Incorrect option

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