23. Endosperm

This is a picture of pinto beans, which are an example of endosperm. Endosperm is the tissue in angiosperm seeds that provides nutrients for the developing embryo. Beans are a type of seed, so they have endosperm. When the embryo starts to develop, then the embryo will use up the food and nutrients stored in the endosperm, allowing the bean plant to grow. Also, when people eat pinto beans or any other type of bean, the endosperm is the nutritious part of the beans.