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Questions and Answers
Which of the following statements about the exine of a pollen grain is NOT true?
Which of the following statements about the exine of a pollen grain is NOT true?
- It serves to protect the pollen grain from environmental stresses
- It has a uniform structure without any patterns or designs (correct)
- It is made up of sporopollenin, a highly resistant organic material
- It can withstand high temperatures and strong acids and alkali
What is the primary function of the germ pores in a pollen grain?
What is the primary function of the germ pores in a pollen grain?
- To allow the pollen tube to emerge during germination (correct)
- To provide structural support to the pollen grain
- To aid in the dispersal of pollen grains by wind or insects
- To facilitate the exchange of gases during pollen development
Which of the following statements regarding the intine of a pollen grain is correct?
Which of the following statements regarding the intine of a pollen grain is correct?
- It is made up of sporopollenin, similar to the exine
- It is responsible for the patterns and designs seen on the pollen grain surface
- It is composed of cellulose and other carbohydrates (correct)
- It is the outermost layer of the pollen grain wall
What is the primary reason for the exceptional preservation of pollen grains as fossils?
What is the primary reason for the exceptional preservation of pollen grains as fossils?
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Why is it important for the exine of a pollen grain to be hard?
Why is it important for the exine of a pollen grain to be hard?
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