Cell Biology/Introduction to Cell Biology

Introduction to Cell Biology
It is easy to recognize life. Cats, trees in our gardens, ourselves etc. are all alive. Computers, the air we breathe, waterfalls, etc. whereas, not alive. But what is life? What makes living beings different from sand, water?

Cell biology tries to answer what life is, where it comes from and how it functions. From that, cell biologists draw a general rule for all living things on Earth.