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Question

The cambium which produces cork is known as

A
Phelloderm
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B
Phellogen
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C
Periblem
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D
Periderm
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Solution

The correct option is A Phellogen
In extrastelar secondary growth, epidermis and pericycle, with parenchyma or collenchyma cells acquire secondary meristematic property by de-differentiation and is called as cork cambium. It is also called as phellogen. It is a lateral meristem which helps in secondary growth. It produces a tough protective material called as cork. The cork is used to seal wine bottles.
Thus, the correct answer is option B.

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