What are the first leaves that sprout?

The first leaves that sprout are called cotyledons. Cotyledons are the first leaves of a plant embryo and are essential for the initial growth and development of the plant. They are typically simple, often heart-shaped, and may differ in appearance from the true leaves that develop later. Cotyledons are important for the storage and utilization of nutrients, photosynthesis, and the protection of the developing plant.