The hard outer layer of pollens, named exine, is made of

Question

The hard outer layer of pollens, named exine, is made of (A) cellulose (B) tapetum (C) sporopollenin (D) pectin

Tardigrade Admin · Accepted Answer

Sporopollenin is one of the most chemically inert biological polymers. It is a major component of the tough outer (exine) walls of plant spores and pollen grains. It is chemically very stable and is usually well-preserved in soils and sediments.

Q. The hard outer layer of pollens, named exine, is made of

cellulose

tapetum

sporopollenin

pectin

Sporopollenin is one of the most chemically inert biological polymers. It is a major component of the tough outer (exine) walls of plant spores and pollen grains. It is chemically very stable and is usually well-preserved in soils and sediments.