Question

What is the role of sporopollenin?

Answer 1

Hint: Sporopollenin is one of the most advanced chemistry polymers. Sporopollenin may also be a lipid-attracted lipid Protein secreted by Tapetum. It is an integral part of the hard outer walls of pollen grains.

Complete Answer:
Sporopollenin is one of the most advanced polymers. It is an important component of the outer (solid) walls of plant seeds and pollen grains.
The outer wall or discharge of pollen grains contains sporopollenin. It is one of the most advanced organic compounds known to be known. Protects pollen grains from foreign substances such as heat, acid, alkali, etc. due to sporopollenin, pollen grains are stored as residues. There is no known enzyme that can lower sporopollenin.
Sporopollenin can also be a lipid- and phenolic-based polymer present within the outer layer of the pollen wall (Morant et al., 2007). Similarly, suberin can also be a lipid- and phenolic-based polymer present within the cell walls of various external and internal layers (Franke & Schreiber, 2007).
Sporopollenin is a highly concentrated polymer composed of carbon, hydrogen, and oxygen that is remarkably stable and is found to be chemically stable in sedimentary rocks dating back some 500 million years. The surface of the sporopollenin space contains groups of phenolic, alkane, alkene, ketone, lactone, and acid.

Note:
Sporopollenin is a highly concentrated polymer composed of carbon, hydrogen, and oxygen that is remarkably stable and is found to be chemically stable in sedimentary rocks dating back some 500 million years.