5 Questions
Which of the following statements about the exine of a pollen grain is NOT true?
It has a uniform structure without any patterns or designs
What is the primary function of the germ pores in a pollen grain?
To allow the pollen tube to emerge during germination
Which of the following statements regarding the intine of a pollen grain is correct?
It is composed of cellulose and other carbohydrates
What is the primary reason for the exceptional preservation of pollen grains as fossils?
The presence of sporopollenin in the exine, which is highly resistant
Why is it important for the exine of a pollen grain to be hard?
To protect the pollen grain from environmental stresses and desiccation
Learn about the process of seed development and germination, including the formation of tough seed coats, the role of micropyle in oxygen and water exchange, reduction of water content in mature seeds, and the concept of dormancy in embryos.
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