👉 A blastema is a type of cell in plant cells. It refers to a specialized organelle within a cell that functions as a storage or an energy store for nutrients and water, but it also contains various chemicals or compounds that are essential for the cell's survival. In plants, these structures are often found in the endoplasmic reticulum (ER) of plant cells, where they provide a source of energy for the cell's functions such as photosynthesis and respiration.