Aleurone (from Greek aleuron, flour) is a protein found in the endosperm of many seeds. It forms the outermost layer of the seed coat in some grains. During seed germination, hydrolysis in the seed causes the aleurone cells to break down into amino acids. Once triggered by hormones released from the embryo the aleurone synthesises enzymes in order to break down the starchy endosperm supplying sugars to drive the growth of roots and the acrospire. A representation of the 3D structure of myoglobin, showing coloured alpha helices. ... Endosperm is a triploid tissue (containing three sets of chromosomes) found in the seeds of flowering plants. ... A ripe red jalapeno cut open to show the seeds For other uses, see Seed (disambiguation). ... This writeup is about biological seeds; for other meanings see Seed (disambiguation). ... The word grain has several meanings, most being descriptive of a small piece or particle. ... Sunflower seedlings, just three days after germination Germination is the process in botany where growth emerges from a resting stage. ... Hydrolysis is a chemical process in which a molecule is split into two parts by the addition of a molecule of water. ... Endosperm is a triploid tissue (containing three sets of chromosomes) found in the seeds of flowering plants. ...