Which of the following is made up of dead cells?

  • Option 1)

    Xylem parenchyma

  • Option 2)

    Collenchyma

  • Option 3)

    Phellem

  • Option 4)

    Phloem

 

Answers (3)

As learnt

Cork cambium -

Cork cambium or extrastelar cambium or phellogen arises from the hypodermis or from the outer layer of cortex. Cork cambium divides periclinically(divides both outer and inner side). The outer side cells become dead and known as cork or phellem. The inner side cells are differentiated into parenolyma and contain chloroplasts. These cells are called secondary cortex or phelloderm. 

-

 

 


Option 1)

Xylem parenchyma

This option is incorrect

Option 2)

Collenchyma

This option is incorrect

Option 3)

Phellem

This option is correct

Option 4)

Phloem

This option is incorrect

S Sachin

Phellem

E Emma

Xylem parenchyma i think

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