Endosperm is not seen in the seeds of _________ family.

Options

A. Orchidaceae
B. Cactaceae
C. Ranunculaceae
D. Malvaceae

Answer

To solve the question, "Endosperm is not seen in the seeds of _________ family," we need to analyze the options provided and understand the concept of endosperm in seeds.

### Step-by-Step Solution:

1. **Understanding Endosperm**:
- Endosperm is a tissue produced inside the seeds after fertilization. It serves as a source of nutrition for the developing embryo.

2. **Function of Endosperm**:
- The primary function of endosperm is to provide nourishment to the embryo. It contains essential nutrients, oils, and proteins that support the growth of the plant.

3. **Endosperm Consumption**:
- In some plants, the endosperm is fully consumed by the growing embryo before the seed matures. Examples of such plants include pea, bean, and groundnut.

4. **Analyzing the Options**:
- **Option A: Orchidaceae**: This family is known for having seeds that do not contain endosperm. The seeds are very small and often rely on mycorrhizal fungi for nutrition.
- **Option B: Cactaceae**: Members of this family typically have endosperm in their seeds.
- **Option C: Ranunculaceae**: This family also generally has seeds with endosperm.
- **Option D: Malaceae**: Similar to the previous families, this family usually has endosperm in its seeds.

5. **Conclusion**:
- Based on the analysis, the family that does not have endosperm in its seeds is **Orchidaceae**. Therefore, the correct answer is **Option A**.

### Final Answer:
**Endosperm is not seen in the seeds of Orchidaceae family.**