______,a chemical that hardens cell walls and supports terrestrial plants,is found in all plants except _______.

Question

Quizplus · Accepted Answer

Lignin is the chemical that hardens cell walls and supports terrestrial plants, and it is found in all plants except bryophytes. Cellulose is also found in all plants, including bryophytes. Calcium carbonate is not involved in supporting cell walls, and it is found in some plants, including ferns. Option D is incorrect because lignin is found in ferns, but it is not found in bryophytes.

______,A Chemical That Hardens Cell Walls and Supports Terrestrial Plants,is