A) collenchyma
B) phloem cells
C) ray parenchyma only
D) ray parenchyma and xylem cells
Correct Answer: D
Solution :
Tyioses are balloon like structures develop from xyiem parenchyma. These tyioses block the passage of xylem vessels and ray parenchyma. So, also called tracheal plug. These tyioses block the continuity and flow of water, which leads to death of elements of heart wood.
You need to login to perform this action.
You will be redirected in
3 sec
