
It’s hard to imagine organisms smaller than yeast cells. There are about 40 billion of them in just one gram! These tiny fungi are essential in cities, where they work tirelessly in bakeries to make dough rise for bread!
Even more astonishing are estimates of their strength. Relative to its size, each yeast cell is about 157 times stronger than a horse! In other words, if a horse were made up of cells with the properties of a yeast cell, and if all those cells worked as they do during dough fermentation—such a horse could pull the largest ocean liner upstream against the current of any river in the world!
A person with strength proportional to that of a yeast cell could stop a speeding express train in its tracks!