Question

Besides phellem, phellogen, root periderm comprises of

• A. Secondary cortex
• B. Phelloderm
• C. Bark
• D. More than one option is correct

Answer 1

The correct option is B Phelloderm

The periderm consists of three layers, namely phelooderm, phellogen and phellem. The phelloderm layer is present inside of cork cambium. It is composed of living parenchyma cells. The phellogen layer is present in cork cambium. It gives rise to periderm. The phellem layer is present in the cork. It is air-filled protective tissue.

Thus, the correct answer is 'Phelloderm.'