Question

Secondary cortex is also known as

• A. Phellem
• B. Phelloderm
• C. Phellogen
• D. Bark

Answer 1

The correct option is B Phelloderm

• The cambium formed in the extra-stele region is the cork cambium.
• The cork cambium leads to the formation of new tissues which helps in the secondary growth of the plants. The cork cambium is known as the phellogen.
• The phellem forms the cork. The secondary cortex is known as the phelloderm.
• These are thin-walled cells that develop from the inner side of the cork cambium.

Thus, the correct answer is option B.