Largest cell of the ovule is

Options

A. Megaspore mother cell
B. Antipodal cell
C. Central cell
D. Size of cells variable.

Answer

To determine the largest cell of the ovule, we need to analyze the options provided:

1. **Megaspore Mother Cell**:
- This cell is located in the nucellus and is diploid.
- It undergoes meiosis to produce four haploid megaspores.
- However, it is not the largest cell in the ovule.

2. **Antipodal Cell**:
- Antipodal cells are found in the embryo sac, specifically towards the chalazal pole.
- There are usually three antipodal cells present.
- These cells are not the largest in the ovule.

3. **Central Cell**:
- The central cell is located in the center of the embryo sac.
- It is indeed the largest cell of the ovule.
- The central cell contains two polar nuclei, which can fuse to form a diploid secondary nucleus.

4. **Variable Size of Cells**:
- This option suggests that the size of cells varies, which does not provide a specific answer.

Based on the analysis, the correct answer is the **Central Cell**, as it is the largest cell of the ovule.

### Step-by-Step Solution:
1. Identify the options given for the largest cell of the ovule.
2. Analyze the Megaspore Mother Cell: It is diploid and forms haploid megaspores but is not the largest cell.
3. Analyze the Antipodal Cell: Present in the embryo sac and typically three in number, but not the largest.
4. Analyze the Central Cell: Located in the embryo sac, it is the largest cell and contains two polar nuclei.
5. Conclude that the Central Cell is the largest cell of the ovule.