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Question
Periderm is made up of
Periderm is made up of
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Solution
The correct option is D All of the above
In extrastelar secondary growth, epidermis and pericycle with parenchyma acquire secondary meristematic property by de-differentiation and is called as cork cambium. It is a lateral meristem which helps in secondary growth. It produces tough protective material called as cork. The phelloderm is present inside the cork cambium. The phelloderm (secondary cortex), phellogen (cork cambium) and phellem (cork) are the covering layer when the epidermis gets ruptured. The newly formed periderm (phelloderm, phellogen and phellem) becomes the protective layer.So, the correct answer is 'All of the above'
In extrastelar secondary growth, epidermis and pericycle with parenchyma acquire secondary meristematic property by de-differentiation and is called as cork cambium. It is a lateral meristem which helps in secondary growth. It produces tough protective material called as cork. The phelloderm is present inside the cork cambium. The phelloderm (secondary cortex), phellogen (cork cambium) and phellem (cork) are the covering layer when the epidermis gets ruptured. The newly formed periderm (phelloderm, phellogen and phellem) becomes the protective layer.
So, the correct answer is 'All of the above'
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