You know quite a bit about cells, but what are they for - what do they do?
Lots of things, of course, but it's weird to consider that we humans are a great big bag of lots and lots of different cells, each working away to ensure that we are living, fully-functioning animals.
What happens when a cell gets old? How do we grow? Can things go wrong? These are the sorts of questions that we'll consider in this worksheet, so see what you can find out.....