The cells of the embryo sac in the chalazal end are called as

Options

A. Antipoda cells
B. Synergids
C. Egg and synergids
D. Antipodals and synergids

Answer

To solve the question regarding the cells of the embryo sac at the chalazal end, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Embryo Sac**: The embryo sac is a structure found within the ovule of flowering plants. It contains the female gametes and is crucial for fertilization and subsequent development of the seed.

2. **Identifying the Chalazal End**: The embryo sac has two ends: the micropylar end and the chalazal end. The chalazal end is the opposite end of the micropyle, which is where the pollen tube enters.

3. **Cells at the Chalazal End**: At the chalazal end of the embryo sac, there are specific cells that play a role in the nutrition of the developing embryo.

4. **Naming the Cells**: The cells located at the chalazal end of the embryo sac are known as **antipodal cells**.

5. **Characteristics of Antipodal Cells**:
- Typically, there are three antipodal cells present.
- These cells are usually triploid (3N) in nature.
- Their primary function is to provide nutrition to the developing embryo sac.

6. **Conclusion**: Based on the information gathered, we can conclude that the cells of the embryo sac at the chalazal end are called **antipodal cells**.

### Final Answer:
The cells of the embryo sac in the chalazal end are called **antipodal cells**.