Abstract The endoplasmic reticulum (ER) and mitochondria are interconnected intracellular organelles with vital roles in the regulation of cell signaling and function. While the ER participates in a number of biological processes including lipid biosynthesis. Ca2+ storage and protein folding and processing. mitochondria are highly dynamic organelles governing ATP synthesis. https://www.houseandholders.shop/product-category/stuffed-animals/