1. The biggest cell in the world is the ostrich egg, which can be seen with your naked eye!
2. Many cells make up one tissue, and many tissues make up an organ, and many organs make up a system!
3. One human cell contains 46 chromosomes, however, some humans have 47 chromosomes, and therefore these people are diagnosed with Down's Syndrome!
4. Eukaryotic cells are 10 times larger than prokaryotic cells, simply because they have a nucleus!
5. We have approximately 100 trillion cells in our body! A typical cell is 10 micrometers in size and 1 nanogram in mass!