Definition of a cell
The bodies of living organisms are made up of small microscopic units called cells.
The cells make up the structures of the living organisms and are responsible for carrying out various biological processes in the bodies of the living organisms.
Some organisms are made up of a single cell only e.g. amoeba and other bacteria in the kingdom monera. These organisms are known as unicellular organisms.
Other organisms are composed of many cells and are said to be multicellular. Most plants and animals are multicellular.A cell is the basic functional unit of an organism.
Being very small, the cell cannot be seen with a naked eye. A powerful magnifying instrument is required. The microscope is used to view the cells.