A Chemist is a professional scientist who specializes in the study of matter and its properties. They are often involved in research and development, as well as the production and testing of new products. A PHARMACIST is a healthcare professional who specializes in the preparation and dispensing of medications. An APOTHECARY is an individual who prepares and sells medicines and drugs. All three professions are related to the field of chemistry, but each has its own unique set of responsibilities.