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Consider the following statements related to anther walls and select the correct option.
Statement-A: The cells of endothecium layer are ephemeral and degenerate before maturity.
Statement-B: Tapetum is the innermost layer of anther wall which surrounds the sporogenous tissue and nourishes the developing pollen grains
  • a)
    Only statement A is incorrect
  • b)
    Only statement B is incorrect
  • c)
    Both statements A and B are incorrect
  • d)
    Both statements A and B are correct
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Consider the following statements related to anther walls and select ...
**Statement A: The cells of endothecium layer are ephemeral and degenerate before maturity.**
The endothecium is a layer of cells located between the middle layer and the tapetum in the anther wall. It plays a crucial role in the development and maturation of the pollen grains. The statement suggests that the cells of the endothecium layer are ephemeral, meaning they are short-lived and degenerate before maturity.

However, this statement is incorrect. The cells of the endothecium layer do not degenerate before maturity. Instead, they undergo thickening of the cell wall and become highly lignified. This thickening of the cell wall helps in providing mechanical support to the anther during dehiscence (the opening of the anther to release pollen grains).

**Statement B: Tapetum is the innermost layer of anther wall which surrounds the sporogenous tissue and nourishes the developing pollen grains.**
The tapetum is indeed the innermost layer of the anther wall. It is located between the sporogenous tissue (which gives rise to pollen grains) and the endothecium. The tapetum has a vital role in the development and maturation of pollen grains.

The tapetum is responsible for providing nourishment to the developing pollen grains. It synthesizes and secretes various substances like enzymes, lipids, proteins, and sporopollenin, which are essential for the development and viability of pollen grains. The tapetum also helps in the release of mature pollen grains by breaking down the sporopollenin wall.

Therefore, statement B is correct.

**Conclusion:**
Based on the analysis, it can be concluded that only statement A is incorrect, while statement B is correct. The cells of the endothecium layer do not degenerate before maturity, and the tapetum is the innermost layer of the anther wall that surrounds the sporogenous tissue and nourishes the developing pollen grains.
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Community Answer
Consider the following statements related to anther walls and select ...
Cells of endothecium are persistent.
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Consider the following statements related to anther walls and select the correct option. Statement-A: The cells of endothecium layer are ephemeral and degenerate before maturity.Statement-B: Tapetum is the innermost layer of anther wall which surrounds the sporogenous tissue and nourishes the developing pollen grainsa)Only statement A is incorrectb)Only statement B is incorrectc)Both statements A and B are incorrectd)Both statements A and B are correctCorrect answer is option 'A'. Can you explain this answer?
Question Description
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