FFA Floriculture Practice Test

The role of endosperm in seeds is primarily to store food for the developing embryo. The endosperm is a tissue that is formed during fertilization and serves as a vital source of nutrients. It usually contains carbohydrates, proteins, and fats, which provide the necessary energy and building blocks for the growth of the embryo as it begins to develop into a new plant. This storage function is crucial because, during the early stages of germination, the embryo does not have access to external nutrients; it relies on the endosperm for sustenance until it can start producing its own food through photosynthesis once it has developed leaves and roots. Thus, the endosperm acts as a reservoir of energy and nutrients, ensuring that the embryo has everything it needs to begin its life cycle effectively. In contrast, other options do not accurately describe the function of the endosperm. Genetic diversity is achieved through sexual reproduction and is not a role of the endosperm. Photosynthesis is a process performed by chlorophyll-containing structures in leaves, not by the endosperm. Lastly, while some endosperm structures may contribute to the seed's overall integrity, the primary function remains as a food source for the embryo.