How many cells are there in the world.

Question: How many cells are there in the world.
- Keywords:
  cell
Asked by eatslugs to Callum, Gina, Katie, Michelle, Sam on 15 Nov 2012.
- Michelle Linterman answered on 15 Nov 2012:
  
  Hi eatslugs,
  
  Seeing as there are about a hundred trillions of cells in a single human body, and about 7 billion people on the planet – so almost a trillion trillion cells just in humans alone! A number I can’t even imagine! That is not even counting all the other animals insects and plants, I’m not even sure how to add those into the equation.
  
  Tough question!
  
  Michelle
- Callum Johnston answered on 16 Nov 2012:
  
  Wow! Like Michelle said I don’t think we would ever be able to guess how many cells are in the world, I don’t think we even have numbers to describe how many there will be! Sometimes in science there are things that are just not worth trying to measure!

Question: How many cells are there in the world.