what is the function of intine of a pollen grain? Share with your friends Share 0 Tanya Gupta answered this The intine comes out through any one germ pore during the germination of pollen grain in the form of pollen tube. 3 View Full Answer Siri Gurajapu answered this as intine is made up of cellulose and pectin it may protect the pollen grain. this is because cellulose is hard. 3 Shefali Rockstar answered this are u sure tanya? 0 Hridhay answered this thnx 5 Preansy answered this @siri gurajapu , but sporopollenin is the most resistant material, why would it need cellulose for protection when it already has the exine ? 0