________ is a relatively indigestible strengthening polymer that accounts for more than a quarter of the dry mass of wood.
A) Cellulose
B) Starch
C) Lignin
D) None of these choices

Question

Quizplus · Accepted Answer

Lignin is a polymer that provides structural support to the plant cell walls, making them rigid and woody. It is indigestible by most organisms and makes up a significant portion of the dry weight of wood. Cellulose and starch are also important components of plant cell walls, but they do not account for as much of the dry mass of wood as lignin does.

________ Is a Relatively Indigestible Strengthening Polymer That Accounts for More