Embryo sac is present embedded in nucellus at which end of ovule?

Options

A. Micropylar end
B. Chalazal end
C. In the center
D. None of these

Answer

**Step-by-Step Solution:**

1. **Understanding the Structure of the Ovule**: The ovule is a crucial part of the female reproductive structure in flowering plants. It contains the female gametophyte, which is also known as the embryo sac.

2. **Identifying the Parts of the Ovule**: The ovule has two ends: the micropilar end and the chalazal end. The micropilar end is where the ovule is attached to the ovary, while the chalazal end is the opposite end.

3. **Location of the Embryo Sac**: In angiosperms (flowering plants), the embryo sac is embedded within the nucellus, which is the tissue surrounding the embryo sac. This structure is typically located towards the micropilar end of the ovule.

4. **Components of the Embryo Sac**: The embryo sac contains several important structures, including the egg apparatus (which consists of the egg cell and synergids) located at the micropilar end, and the antipodal cells located at the chalazal end.

5. **Conclusion**: Based on the structure and location of the embryo sac within the ovule, it is clear that the embryo sac is embedded in the nucellus at the micropilar end of the ovule.

**Final Answer**: The embryo sac is present embedded in the nucellus at the micropilar end of the ovule.

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