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Questions and Answers
What is the outer layer of the pollen grain wall called?
What is the outer layer of the pollen grain wall called?
What is the function of germ-pores in the pollen grain?
What is the function of germ-pores in the pollen grain?
What is the composition of the inner wall layer, intine, in a pollen grain?
What is the composition of the inner wall layer, intine, in a pollen grain?
Study Notes
Pollen Grain Structure
- The outer layer of the pollen grain wall is called the exine.
- Germ-pores in the pollen grain are responsible for allowing the pollen tube to emerge during germination.
- The inner wall layer, intine, in a pollen grain is composed of cellulose and pectin.
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Description
Test your knowledge on the structure of a typical pollen grain, including its non-motile, haploid, unicellular nature and the characteristics of its two-layered wall, exine and sporoderm.
