When the ovule is curved and embryo sac becomes horse shoe shaped, such an ovule is called

Options

A. Campylotropous
B. Amphitropous
C. Orthotropous
D. Anatropous.

Answer

To answer the question about the type of ovule when the ovule is curved and the embryo sac becomes horseshoe-shaped, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Structure of Ovules**:
- Ovules have different shapes and arrangements. The key components include the chalaza, micropyle, and funiculus.

2. **Identify Different Types of Ovules**:
- There are several types of ovules: Orthotropous, Anatropous, Hemianotropous, Campylotropous, Amphitropous, and Circinotropous.

3. **Define Each Type**:
- **Orthotropous**: The chalaza, embryo sac, and micropyle are aligned straight.
- **Anatropous**: The ovule is curved over the funiculus at a 180-degree angle, with the micropyle and hilum side by side.
- **Hemianotropous**: The ovule is twisted at a 90-degree angle.
- **Campylotropous**: The embryo sac is slightly curved while the body of the ovule is twisted.
- **Amphitropous**: Both the body of the ovule and the embryo sac are curved, resulting in a horseshoe shape.
- **Circinotropous**: The funiculus coils completely around the body of the ovule.

4. **Analyze the Given Question**:
- The question specifies that the ovule is curved and the embryo sac is horseshoe-shaped.

5. **Select the Correct Type**:
- Based on the definitions, the type of ovule that matches the description of being curved with a horseshoe-shaped embryo sac is **Amphitropous**.

6. **Conclude the Answer**:
- Therefore, the correct answer to the question is **Amphitropous**.

### Final Answer:
The ovule that is curved and has a horseshoe-shaped embryo sac is called **Amphitropous**.

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