Name the organic materials of which exine and intine of an angiosperm

CBSE Class 12 CBSE Class 12 Biology
1

Name the organic materials of which exine and intine of an angiosperm pollen grains are made up of Explain the role of exine.

2

The exine layer is made up of sporopollenin and intine is made- up of cellulose and pectin material.
Exine layer protects the pollen from adverse environmental conditions.