Carbon Dioxide and wastes are transferred for oxygen. The  blood then travels to the left atrium by the pulmonary artery and  then to the left ventricle. The blood leaves the heart by the aorta  to the other parts of the body.. The circulatory system is the organ system that carries substances around our body. There is no such thing as a circulary system.
Overview [edit]. The purpose of the ribosome is to translate messenger RNA (mRNA) to proteins with the aid of tRNA. In eukaryotes, ribosomes can commonly be found in the cytosol of a cell, the endoplasmic reticulum or mRNA, as well as the matrix of the mitochondria.
Membrane proteins are synthesized by ribosomes that are attached to what? The endoplasmic reticulum. Ribosomes bound to endoplasmic reticulum  generally make proteins destined either for inclusion into  membranes; for packaging within certain orgaâ¦nelles, such as  lysosomes; or for export from the cell. - Vance Austin Neely. 3 people found this useful.