Question
Download Solution PDFThe external layer of pollen is made of Exine _________, which is a highly resistant organic matter.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is Sporopollenin.
Key Points
- Sporopollenin is the main component of the outer wall of spores and pollen grains.
- It is known for being one of the most chemically resistant organic materials found in nature.
- This substance makes the pollen grains highly durable, allowing them to withstand various environmental stresses.
- Sporopollenin plays a crucial role in the protection and transport of pollen, ensuring the reproductive success of many plants.
Additional Information
| Option | Details |
|---|---|
| 1) Microcolonin | Not related to pollen structure; possibly a confusion with microorganisms or chemical compounds. |
| 2) Intine | Refers to the inner layer of the pollen grain wall, which is not as chemically resistant as sporopollenin. |
| 4) Microscope Tetraed | This option seems to be incorrectly stated, as it mixes terminologies unrelated to pollen grain structure. |
Last updated on Jun 7, 2025
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