The average weight of a single cell is incredibly small. Flexi Says estimates it to be 1 nanogram (10-9 grams). This means a gram contains a billion cells!
Cell Weight Variations
It's important to note that cell weight isn't uniform. The weight of a single cell varies greatly depending on the cell type. For example, a source states that a single mammalian cell weighs approximately 3-4 nanograms, mostly water. Weight of a single mammalian cell - Mammals - BNID 108454 Different cell types, like red blood cells, will have varying densities and therefore weights. Methods exist to measure cell proliferation by analyzing changes in cell weight, such as techniques involving heavy water labeling. Measurement of cell proliferation by heavy water labeling | Nature ...
Context: Fuel Cells vs. Biological Cells
The provided references also mention "fuel cells," which are electrochemical devices generating electricity, completely unrelated to biological cells. The weight of fuel cells is significantly larger, ranging from tens to hundreds of kilowatts in power output. Heavy Duty Modules - Fuel Cell Power Products | Ballard Power This is a completely different context and should not be confused with the weight of biological cells.
