Each type of protein is usually sent to a particular part of the cell. An important part of cell biology is the investigation of molecular mechanisms by which proteins are moved to different places inside cells or secreted from cells. Most proteins are synthesized by ribosomes in the rough endoplasmic reticulum (RER).
Alexander George Alex Clare (born 14 September 1985) is a British singer and songwriter.
Alex Kingston. Alexandra Elizabeth Alex Kingston (born 11 March 1963) is an English actress. She is known for her roles as Dr. Elizabeth Corday on the NBC medical drama ER and as River Song in the BBC science fiction series Doctor Who. 1 Early life.