A cell consists of three parts, nucleus, cell membrane and cytoplasm between the two. Nucleus contains the DNA and how the cell functions is determined by the nucleus. Cells are the basic building blocks of all living things. The human body is composed of trillions of cells.

What is at cell made of?

Cells are composed of water, inorganic ions, and carbon-containing (organic) molecules. Water is the most abundant molecule in cells, accounting for 70% or more of total cell mass. Consequently, the interactions between water and the other constituents of cells are of central importance in biological chemistry.

Are human cells alive?

Yes , individual cells are life forms and most of the ones that compose your body are alive. By alive I mean they exhibit the commonly defined 7 characteristics of life.