Question

Define a cell ?

Answer 1

Cells are the basic unit bounded by the membrane that consists of the fundamental molecules of life of which all living organisms are made up of. Cell Biology encompasses everything about cells from basic structure to functions of every cell organelle. A single cell is an organism itself such as yeast or bacterium other cells gain special functions soon after they mature. These acquire unique functions as they mature. They cooperate with other cells and become the building blocks of multicellular organisms such as humans and animals. A group of small bacteria called mycoplasmas are the smallest known cells. Some of these unicellular organisms are spheres of about 0.3 micrometers in diameter with a mass of 10^-14gram.