How many cells do bacteria have?
Bacteria are single cell organisms so, a single bacteria (bacterium actually) is only one cell. The word bacteria is plural so it means at least two. A colony of bacteria (which can form quite rapidly under the right conditions starting from a single bacterium) contain hundreds of thousands if not millions of bacterium (millions of individual cells) by the time they grow large enough to see with the naked eye. Bacteria reproduce by cell division. So… start with one, wait a few minutes, double it, wait a few more minutes, double again, and so on. It does not take long to make a large number.
