Question

Secondary cortex is

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

Answer 1

The correct option is C Phelloderm

A. Phellogen - a ring of meristamatic formed by the dedifferentiation of parenchyma present in the cortex of dicot stem is called Phellogen or cork cambium.

B.Phellem - a dead tissue, suberised cels, formed from cork cambium or phellogen towards its outerside is called phellem or cork. It provides protection to the inner parts of the stem.

C.Phelloderm - Parenchymatous tissue, formed from cork cambium or phellogen towards its innerside is called Phelloderm or secondary cortex. it is a living tissue.

D.Bark - All tissues present outside the vascular cambium together called Bark. it contains both living and non living cells.

So, the correct option is 'Phelloderm'.