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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Academic session 2026-27, Chapter 6 in the current curriculum.

Welcome to the NCERT Solutions for Class 11 Biology - Chapter Anatomy of Flowering Plants. This page offers a step-by-step solution to the specific question from Exercise 1, Question 11: What is periderm? How does periderm formation take place in dicot stem?. With detailed answers and explanations for each chapter, students can strengthen their understanding and prepare confidently for exams. Ideal for CBSE and other board students, this resource will simplify your study experience.

Question 11: 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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  • Read the question carefully and focus on the core concept being asked.
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Comments

  • Srasti Poojary
  • Oct 10, 2019

Ur site is helping me a lot

  • Sanaya
  • Aug 07, 2019

Jyada achaa Ni tha

  • Sonakshi
  • Mar 19, 2019

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

  • Prapti baruah
  • Sep 24, 2018

mja..correct

  • Anurag Kanu
  • Sep 12, 2018

Bekar not to the point 🎯

  • Geeta Devi
  • Jul 22, 2018

Issme Dicot stem ka figure bna sakte hai.

  • Pawan
  • Mar 27, 2018

It na bada likhna knife jaruri that

  • Lilly
  • Sep 13, 2017

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

  • biologist
  • Jun 15, 2017

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?....

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