* By volume: Some bacterial cells can be much larger than yeast cells. For example, the bacterium *Thiomargarita namibiensis* can reach sizes of up to 0.75 millimeters, which is visible to the naked eye!
* By length: Some yeast cells can be longer than some bacteria. For example, the yeast *Saccharomyces cerevisiae* can reach lengths of 5-10 micrometers, while some bacteria like *Escherichia coli* are only about 2 micrometers long.
So, the answer is it depends! Both bacteria and yeast can have cells of varying sizes, and some bacteria can be much larger than some yeast cells, while others can be smaller.
