Insulin. Insulin is a hormone made by the beta cells in the pancreas. It is the key that opens the doors of cells and allows glucose to get into the cell. Each cell needs glucose to function. Carbohydrates in food are broken down into glucose which enters the blood stream.
The pericycle is a cylinder of parenchyma or sclerenchyma cells that lies just inside the endodermis and is the outer most part of the stele of plants.
receptacle. 1  the enlarged or modified tip of the flower stalk that bears the parts of the flower. 2  the shortened flattened stem bearing the florets of the capitulum of composite flowers such as the daisy. 3  the part of lower plants that bears the reproductive organs or spores.