1.

Question : What is sporopollenin?

Answer»

Solution :(i) It is a SUBSTANCE present is exine of pollen grain and contributed by both pollen cytoplasm and tapetum. It is derived from carotenoids.
(ii) It helps to WITHSTAND temperature and is RESISTANT to strong acid, alkali and ENZYME action.
(iii) It preserves the pollen for long periods in fossil deposits, and it also protects pollen during its JOURNEY from anther to stigma.


Discussion

No Comment Found