In embryo sac, which one commonly develops haustoria

Options

A. Synergids
B. Antipodal cells and egg apparatus
C. Oosphere
D. Central cell.

Answer

To answer the question "In embryo sac, which one commonly develops haustoria?", we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Concept of Haustoria**:
- Haustoria are specialized structures that develop as projections or outgrowths from certain cells. Their primary function is to penetrate into other tissues to absorb nutrients.

2. **Identify the Options**:
- The options given are:
- Synergids
- Antipodal Cells
- Egg Apparatus
- Central Cell

3. **Analyze Each Option**:
- **Synergids**: These are involved in guiding the pollen tube to the egg but are not known for developing haustoria.
- **Antipodal Cells**: These cells are located at the opposite end of the embryo sac and have a nutritive function. They can develop haustoria to absorb nutrients from surrounding tissues.
- **Egg Apparatus**: This consists of the egg cell and synergids, and it primarily plays a role in fertilization rather than nutrient absorption.
- **Central Cell**: This cell is involved in forming the endosperm after fertilization but does not develop haustoria.

4. **Conclusion**:
- Based on the analysis, the antipodal cells are the ones that commonly develop haustoria in the embryo sac. They provide nutrients and aid in nutrient absorption from nearby tissues.

### Final Answer:
**Antipodal Cells** commonly develop haustoria in the embryo sac.

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