What part of a grain kernel contains the embryo and lipids?

The germ is the part of a grain kernel that contains the embryo and lipids. It is the reproductive structure of the grain, which is responsible for developing into a new plant when conditions are favorable. The germ is rich in nutrients, including healthy fats, vitamins, and minerals, making it a key component in the nutritional profile of whole grains.

The husk serves as the protective outer layer of the grain but does not contain significant amounts of lipids or the embryo. The endosperm is the food reserve of the grain, primarily composed of starch, and it provides energy to the germ during germination but does not contain the embryo or significant lipids. The bran is the outer layer that provides fiber and some nutrients but again does not contain the germ's embryo or lipids. Thus, the germ is the specific part of the grain kernel that is essential for reproduction and nutrient storage, making it the correct choice.