The typical angiospermic embryosac contain

Options

A. 8 cells and 8 nuclei
B. 7 cells and 7 nuclei
C. 8 nuclei and 7 cells
D. 7 cells and 8 nuclei

Answer

To solve the question regarding the composition of a typical angiospermic embryo sac, we will analyze the structure and count the cells and nuclei present in it.

### Step-by-Step Solution:

1. **Understanding the Structure of the Embryo Sac**:
- The embryo sac is a female gametophyte found in flowering plants (angiosperms).
- It typically contains a total of 7 cells.

2. **Identifying the Types of Cells**:
- **Antipodal Cells**: There are 3 antipodal cells located at the opposite end of the embryo sac.
- **Synergid Cells**: There are 2 synergid cells located near the micropyle (the opening of the ovule).
- **Egg Cell**: There is 1 egg cell, also located near the micropyle.
- **Central Cell**: There is 1 central cell that contains 2 polar nuclei.

3. **Counting the Total Cells**:
- Total cells = 3 (antipodal) + 2 (synergids) + 1 (egg) + 1 (central) = 7 cells.

4. **Counting the Total Nuclei**:
- Antipodal cells contribute 3 nuclei (1 nucleus each).
- Synergid cells contribute 2 nuclei (1 nucleus each).
- The egg cell contributes 1 nucleus.
- The central cell contributes 2 polar nuclei.
- Total nuclei = 3 (antipodal) + 2 (synergids) + 1 (egg) + 2 (polar nuclei) = 8 nuclei.

5. **Final Conclusion**:
- The typical angiospermic embryo sac contains **7 cells and 8 nuclei**.

### Answer:
The correct option is **7 cells and 8 nuclei**.

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