Biology : PU-CET (U.G) 2018 Panjab University Entrance Exam With Answers

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23.

Barks Refers To Secondary Phloem And

A: Phellogen

B: Phellem

C: Phelloderm

D: Periderm

The answer is: D

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Explanation

Bark refers to secondary phloem and Periderm.

Periderm is a protective tissue that replaces the epidermis in plants during secondary growth. It consists of cork (phellem), cork cambium (phellogen), and phelloderm .