What is periderm? How does periderm form | Class 11 Biology Chapter Anatomy of Flowering Plants, Anatomy of Flowering Plants NCERT Solutions

Question: What is periderm? How does periderm formation take place in dicot stem?

Answer:

Periderm is composed of the phellogen, phellem, and phelloderm.

During secondary growth, the outer epidermal layer and the cortical layer are broken because of the cambium. To replace them, the cells of the cortex turn meristematic, giving rise to cork cambium or phellogen. It is composed of thin-walled, narrow and rectangular cells.

Phellogen cuts off cells on its either side. The cells cut off toward the outside give rise to the phellem or cork. The suberin deposits in its cell wall make it impervious to water. The inner cells give rise to the secondary cortex or phelloderm. The secondary cortex is parenchymatous.

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Comments

Srasti Poojary
2019-10-10 22:34:02

Ur site is helping me a lot

Sanaya
2019-08-07 20:47:34

Jyada achaa Ni tha

Sonakshi
2019-03-19 00:33:57

I feel that your answer is absolutely correct... awesome

Prapti baruah
2018-09-24 07:05:32

mja..correct

Anurag Kanu
2018-09-12 15:14:37

Bekar not to the point ð¯

Geeta Devi
2018-07-22 08:52:56

Issme Dicot stem ka figure bna sakte hai.

Pawan
2018-03-27 01:58:33

It na bada likhna knife jaruri that

Lilly
2017-09-13 19:03:49

Not to the point answer.., I'm totally unsatisfied by this :(

biologist
2017-06-15 12:37:07

wrong answer.........

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Welcome to the NCERT Solutions for Class 11 Biology - Chapter . This page offers a step-by-step solution to the specific question from Excercise 1 , Question 11: What is periderm? How does periderm formation take place in dicot stem?....

What is periderm? How does periderm form | Class 11 Biology Chapter Anatomy of Flowering Plants, Anatomy of Flowering Plants NCERT Solutions

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