All About Cells
Cells are the building units of your body. Cells are so tiny you can't see them with your eyes and there are so many in your body you can't count them. Cells work together to make you think, move, talk, laugh and be you.
One cell made you
You started life as a single cell, smaller than the dot at the end of this sentence.
Designed for the job
Your cells are specially adapted to do thousands of different jobs.
Life inside your cells
Cells have complicated insides that are busy keeping you alive.
Life and death of cells
You grow by your cells multiplying but your cells die and are replaced all the time.
Small but many
Cells are so small that you need a microscope to see them. You are made of around 50 to 100 million million cells.







