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What is a periderm? How does periderm formation take place in
Biology
Biology

Class 11

NCERT

Publisher:
NCERT
Subject:
Biology
1

Chapter 1: The Living World

11 questions

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2

Chapter 2: Biological Classification

12 questions

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3

Chapter 3: Plant Kingdom

12 questions

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4

Chapter 4: Animal Kingdom

15 questions

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5

Chapter 5: Morphology of Flowering Plants

15 questions

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6

Chapter 6: Anatomy of Flowering Plants

12 questions

Q1
How is the study of plant anatomy useful to us?
Q2
What is a periderm? How does periderm formation take place in the dicot stems?
Q3
Describe the internal structure of a dorsi-ventral leaf with the help of labelled diagram. 
View all question
7

Chapter 7: Structural Organization in Animals

14 questions

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8

Chapter 8: Cell: The Unit of Life

14 questions

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9

Chapter 9: Biomolecules

15 questions

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10

Chapter 10: Cell Cycle and Cell Division

16 questions

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11

Chapter 11: Transport in Plants

16 questions

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12

Chapter 12: Mineral Nutrition

10 questions

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13

Chapter 13: Photosysnthesis in Higher Plants

9 questions

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14

Chapter 14: Respiration in Plants

12 questions

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15

Chapter 15: Plant Growth and Development

11 questions

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16

Chapter 16: Digestion and Absorption

15 questions

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17

Chapter 17: Breathing and Exchange of Gases

14 questions

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18

Chapter 18: Body Fluids and Circulation

14 questions

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19

Chapter 19: Excretory Products and their Elimination

12 questions

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20

Chapter 20: Locomotion and Movement

10 questions

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21

Chapter 21: Neural Control and Coordination

12 questions

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22

Chapter 22: Chemical Coordination and Integration

9 questions

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Question
Hard
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Solving time: 5 mins

What is a periderm? How does periderm formation take place in the dicot stems?

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Updated on: Mar 18, 2023

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Biology (NCERT)

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What is a periderm? How does periderm formation take place in the dicot stems?
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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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Practice more questions from Biology (NCERT)

Q1
How is the study of plant anatomy useful to us?
Q2
What is a periderm? How does periderm formation take place in the dicot stems?
Q3
Describe the internal structure of a dorsi-ventral leaf with the help of labelled diagram. 
View all

Practice questions from Biology (NCERT)

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Question 3
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Explain the process of secondary growth in the stems of woody angiosperms with the help of schematic diagrams. What is its significance?
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Question 4
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Draw illustrations to bring out the anatomical difference between
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Which is a characteristic of dicots?
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Example of secondary meristem is -
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Question 3
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Give reason for the following : Chlorenchyma is a type of parenchyma.
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Question 4
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Which of the three sub-zones of cortex of dicot stem performs the function of providing mechanical strength to young stem?
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Question Text
What is a periderm? How does periderm formation take place in the dicot stems?
Updated OnMar 18, 2023
TopicAnatomy of Flowering Plants
SubjectBiology
ClassClass 11
Answer TypeText solution:1 Video solution: 1
Upvotes113
Avg. Video Duration14 min