1.

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

Answer»
  • Exine is made up of sporopollenin and intine is made up of pectin and cellulose.
  • The exine provides protection to the pollen grains; the sporopollenin of exine is one of the most resistant organic material which can withstand very high temperature and strong acids and alkalies.


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