Draw a diagram of a male gametophyte of an angiosperm. Label any four parts. Why is sporopollenin considered the most resistant organic material?
This is a diagrammatic representation of male gametophyte of angiosperms (pollen grain).
Sporopollenin is a complex biopolymer compound found in the outer exine layer of the male gametophyte. It is chemically very stable and is non degradable by any enzyme or chemical compound.
1