1.

Which of the following is made up of dead cell?(A) Xylem parenchyma (B) Collenchyma (C) Phellem (D) Phloem

Answer»

(C) Phellem

Cork cambium (phellogen) cuts off cells on both the sides. The outer cells differentiate into cork or phellem. The cork is impervious to water due to suberin deposition in the cell wall.



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