Question

what is lignin with function

Answer 1

Lignin is the second most prevalent biopolymer after cellulose (both of which are present in plant cell walls). Lignins are cross-linked phenolic polymers but do not have a precise molecular formula.

Functions :-Lignin fills is present in the cell wall along with cellulose, hemicellulose, and pectin, and is especially abundant in vascular and support tissues.

Answer 2

lignin - a complex polymeric molecule composed of phenylepropanoid units associated with cellulose
lignin deposition is so thick that the cell walls become strong ,rigid and impermeable to water. the cell lumen became very narrow pr nearly absent