Lignin is a component of the cell walls of:
Cells of collenchyma are thickened with pectin, while cells of schlerenchyma are thickened with lignin.
Match the following layers of the cell wall with their components:
Column I (Layer) Column II (Component)
i). Cellulose a. Middle lamella
ii). Pectin b. Secondary cell wall
iii). Lignin c. Primary cell wall