What is a cell?
October 21, 2017 6:29AM
Collection of living matter enclosed by a barrier that separates the cell from its surroundings.
The cell is the smallest functional and the smallest unit of an organism. A cell is a microscopic and smallest functional and structural unit of a living organism.
The metaphor of a "cell" is used to describe many things other than a plant, animal, or human cell. For examples:
- any small compartment; "the cells of a honeycomb"
- (biology) the basic structural and functional unit of all organisms; they may exist as independent units of life (as in monads) or may form colonies or tissues as in higher plants and animals
- a device that delivers an electric current as the result of a chemical reaction
- a small unit serving as part of or as the nucleus of a larger political movement
- cellular telephone: a hand-held mobile radiotelephone for use in an area divided into small sections, each with its own short-range transmitter/receiver
- small room in which a monk or nun lives
- a room where a prisoner is kept