Scientists Visualize the Complex, Dynamic World Inside a Human Cell
At roughly 0.05 millimeters (less than 0.002 inches) across, a human cell is no larger than a speck of dust, but it contains a staggering level of complexity. Within this microscopic world are around 60 billion proteins, 2 trillion lipid molecules, 5 trillion sugars and amino acids, and around 60 billion RNA molecules, all working together to sustain life.











































































