Class 12th Biology 2014 Set2 Delhi Board Paper Solution
Question 9
Name the organic materials exine and intine of an angiosperm pollen grains are made up of. Explain the role of exine.
Answer
The exine layer is made up of sporopollenin, which is one of the most resistant substances found in nature. The intine layer is made up of cellulose and pectin materials.
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