Question

Which of the following statements about phelloderm are true ?
I. It is a living tissue.
I. It is concerned with the conduction of water and salts.
III. It is a photosynthetic tissue.
The correct combination is

• A. I, II and III, are correct
• B. Only I and II are correct
• C. Only II and III are correct
• D. Only I and III are correct

Answer 1

Answer: (D)

Phelloderm is an inner layer functions as secondary cortex and formed of layer of parenchymatous cells produced by cork cambium during secondary growth. It is generated by the phellogen can contain chlorophyll and functions as photosynthetic tissue. It also has role in defence. These living cells are structurally similar to cells of cortex. The layers of cork and phelloderm varies greatly from species to species. Some plants produce no phelloderm.