The mature seeds of plants such as gram and peas, possess no endosperm, because

Options

A. these plants are not angiosperms
B. there is no double fertilisation in them
C. endosperm is not found in them
D. endosperm gets used up by the developing embryo during seed development

Explanation

To answer the question regarding why the mature seeds of plants such as gram and peas possess no endosperm, we can break down the explanation into the following steps:

### Step-by-Step Solution:

1. **Understanding Endosperm**:
- Endosperm is a tissue in seeds that serves as a food reserve for the developing embryo. It provides essential nutrients during the early stages of germination.

2. **Seed Development in Gram and Peas**:
- In the case of plants like gram (Cicer arietinum) and peas (Pisum sativum), the endosperm is formed during fertilization but is utilized by the developing embryo as it grows.

3. **Absorption of Endosperm**:
- During the development of the seed, the embryo absorbs the nutrients from the endosperm. This process means that by the time the seed matures, there is little to no endosperm left.

4. **Non-Endospermic Seeds**:
- As a result of this absorption, the mature seeds of gram and peas are classified as non-endospermic seeds, meaning they do not contain any endosperm.

5. **Conclusion**:
- Therefore, the mature seeds of gram and peas possess no endosperm because the endosperm is completely utilized by the developing embryo during seed development.

### Final Answer:
The mature seeds of plants such as gram and peas possess no endosperm because the endosperm is used up by the developing embryo during seed development.

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