In flowering plants archesporium gives rise to

Options

A. wall and the tapetum
B. only tapetum and sporogenous cells
C. only the wall of the sporangium
D. both wall and the sporogenous cells

Answer

**Step-by-Step Solution:**

1. **Understanding Archesporium**:
- The archesporium is a large single cell that originates from the nucellus of an ovule in flowering plants (angiosperms). It plays a crucial role in the formation of reproductive structures.

2. **Function of Archesporium**:
- During the process of alternation of generations in angiosperms, the archesporium undergoes division. This division is essential for the development of the male gametophyte.

3. **Division of Archesporium**:
- The archesporium divides to form two main components:
- **Primary Parietal Cells**: These cells contribute to the formation of the anther wall.
- **Primary Sporogenous Cells**: These cells will eventually develop into microspore mother cells.

4. **Formation of Structures**:
- The primary parietal cells will form the wall of the anther, while the primary sporogenous cells will give rise to microspore mother cells, which are crucial for the production of pollen grains.

5. **Analyzing the Options**:
- The options provided were:
- Wall and the tapetum
- Only tapetum
- Only the wall of the sporangium
- Both wall and the sporogenous cells
- The correct answer is "both wall and the sporogenous cells" because the archesporium contributes to the formation of both the wall of the anther and the sporogenous cells.

**Final Answer**: The archesporium gives rise to both the wall and the sporogenous cells.

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