Media

The two major types of growth medium are those used for cell culture, which use specific cell types derived from plants or animals, and microbiological culture, which are used for growing microorganisms, such as bacteria or fungi.

A chemically defined medium is a growth medium suitable for the in vitro cell culture of human or animal cells in which all of the chemical components are known..

An agar plate is a Petri dish that contains a growth medium (typically agar plus nutrients) used to culture microorganisms or small plants like the moss Physcomitrella patens. Sometimes selective compounds will be added to influence growth, such as antibiotics.

Many different types of medium are used in the microbiology laboratory. … Organisms with differing growth characteristics typically show visible differences in growth when placed on differential medium. Examples include blood agar, Eosin Methylene Blue (EMB) agar, Mannitol Salt agar, and MacConkey agar.