Introduction
- The
human body is made of billions and billions of cells.
- Cells
have specific shapes, structures and different functions.
- Cells
of same types make tissues, and tissues make organs.
- Cells,
tissues, organs and systems make the human body.
- The
cell is the structural and functional basic unit of all living organisms.
- There
are even unicellular organisms (like bacteria).
- Some
cells have the ability to multiply by division.
- Most
of the diseases are due to malfunction of cells, to cell death, or to cells
wrong multiplication rates.
Mugur Roz