Answer:
(a) As root and stem grow older
and increase in girth, peripheral tissue of root and stem become cork, cork
cells are dead and do not have any intercellular spaces. Cork is protective in function.
It is used for manufacture of sports goods, linoleum and for insulation. (1/2)+(1/2)
(b) It consists of four types of
elements
(i) Tracheids
(ii) Vessels or Trachea
(iii) Xylem parenchyma
(iv) Xylem fibres 
You need to login to perform this action.
You will be redirected in
3 sec
