Here's a breakdown:
* Endosperm: This is a tissue that surrounds the embryo and provides nourishment in the form of starch, proteins, and fats. Most monocots (grasses, lilies, palms) store their food in the endosperm. Think of a grain of rice or corn; the starchy part is the endosperm.
* Cotyledons: These are the seed leaves that are part of the embryo itself. Some dicots (beans, peas, sunflowers) store their food in the cotyledons. When the seed germinates, the cotyledons are the first leaves to emerge. These leaves provide nutrients to the young seedling until it can produce its own food through photosynthesis.
In summary:
* Monocots: Food stored in the endosperm
* Dicots: Food stored in the cotyledons
It's important to note that some plants may have both endosperm and cotyledons, but one will typically be the primary source of food storage.
