The largest cell of the mature embryo sac is

Options

A. antipodal cells
B. synergids
C. central cell
D. egg cell

Answer

**Step-by-Step Solution:**

1. **Understanding the Embryo Sac:** The mature embryo sac in flowering plants consists of several types of cells, including antipodal cells, synergids, the egg cell, and the central cell.

2. **Identifying Cell Types:**
- **Antipodal Cells:** These are typically located at the opposite end of the embryo sac and are usually smaller in size.
- **Synergids:** These are located near the egg cell and are also relatively small.
- **Egg Cell:** This is the female gamete and is smaller than the central cell.
- **Central Cell:** This cell is located in the center of the embryo sac and is known for its larger size.

3. **Comparing Sizes:** Among all the cells present in the mature embryo sac, the central cell is the largest. It has a highly vacuolated cytoplasm, which contributes to its larger volume.

4. **Function of the Central Cell:** The central cell contains two polar nuclei and is rich in reserve food materials, which are essential for the development of the embryo after fertilization.

5. **Conclusion:** Based on the size comparison and functions of the cells in the mature embryo sac, the central cell is identified as the largest cell.

**Final Answer:** The largest cell of the mature embryo sac is the **central cell**.

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