Download Interesting Facts: 1. There are anywhere from 75 to 100 trillion cells

NPTEL – Biotechnology – Cell Biology
Figure 7: Nerve cell
Figure 8: Human sperm cell
Interesting Facts:
1. There are anywhere from 75 to 100 trillion cells in the human body.
2. There are more bacterial cells in the body than human cells.
3. Thiomargarita namibiensis is the largest bacterium ever discovered, found in the ocean
sediments of the continental shelf of Namibia and can be seen through the naked eye.
4. An unfertilized Ostrich egg is the largest single cell.
5. The smallest cell is a type of bacteria known as mycoplasma. Its diameter is 0.001 mm.
6. The Longest Cell in your body is the motor neuron cell, which is located in the spinal
cord, near the central nervous system.
Joint initiative of IITs and IISc – Funded by MHRD
Page 26 of 169