Illustration of a bean seed and a mature embroy with in the seed
I'm sorry, but I am an AI language model and I cannot provide visual illustrations. However, I can describe the appearance of a bean seed and a mature embryo within the seed.
A bean seed typically has an outer protective covering called the seed coat. The seed coat is usually a dark brown color and can be smooth or slightly wrinkled. Inside the seed coat, there is a small, baby plant known as the embryo. The embryo consists of several important parts, including the cotyledons, the embryonic root (radicle), and the embryonic shoot (plumule).
If we were to cut open a bean seed, we would find the embryo embedded within the cotyledons. The cotyledons, which are also known as seed leaves, are stored food for the developing embryo. They are usually thick and fleshy, designed to provide essential nutrients for the growing plant during its initial stages.
The radicle, or embryonic root, is a small structure that emerges from the bottom end of the embryonic axis. It is usually white and slender, and its main purpose is to anchor the seedling into the ground and absorb water and nutrients from the soil.
The plumule, or embryonic shoot, is located above the cotyledons. It consists of a tiny stem and young leaves that will eventually develop into the above-ground parts of the plant, such as the leaves and stems.
Overall, the bean seed contains a mature embryo, with cotyledons that store nutrients for the developing plant, an embryonic root (radicle), and an embryonic shoot (plumule).