The nucule of Chara is capped by

Options

A. Nodal cells
B. Internodal cells
C. Tube cells
D. Coronary cells

Answer

**Step-by-Step Solution:**

1. **Understanding Chara**: Chara is a multicellular green alga known for its unique reproductive structures. It exhibits oogamous reproduction, meaning it has distinct male and female gametes.

2. **Identifying the Female Reproductive Structure**: In Chara, the female reproductive structure is called the oogonium, which is also referred to as the "nucule." This structure is oval-shaped and green in color.

3. **Location of Reproductive Structures**: Both male (globule or antheridium) and female (nucule or oogonium) reproductive organs are located at the nodes of the plant. The globule is situated below the nucule.

4. **Examining the Options**: The question provides four options regarding what caps the nucule:
- **Nodal Cells**: These are small cells found at the nodes of the plant.
- **Internodal Cells**: These are elongated cells located between the nodes.
- **Tube Cells**: These cells are associated with the nucule but are not at the tip.
- **Coronary Cells**: These are specifically located at the tip of the nucule.

5. **Identifying the Correct Answer**: Among the options, the coronary cells are the ones that cap the nucule. Therefore, the correct answer to the question is that the nucule of Chara is capped by **coronary cells**.

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