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Sexual Reproduction in Flowering Plants
Pollen grain wall – sporopollenin
1 question from 1 paper, each with its answer.
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- of Sexual Reproduction in Flowering Plants
- 0.79%
Concepts tested
- sporopollenin-exine
All Questions
2018 1 question
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Which of the following has proved helpful in preserving pollen as fossils?
Sporopollenin in the exine is highly resistant.
Sporopollenin cannot be degraded by enzymes, strong acids or alkali; therefore it is helpful in preserving pollen as fossils. Pollenkitt – helps in insect pollination. Cellulosic intine – inner layer of the pollen wall, made up of cellulose and pectin. Oil content – no role in pollen preservation.