Here's a breakdown:

* Yeast cells: Typically range from 3 to 10 micrometers in diameter.

* Bacteria cells: Can be as small as 0.2 micrometers, but most are between 0.5 and 10 micrometers in diameter.

However, there are exceptions:

* Some giant bacteria can reach sizes of up to 750 micrometers, which are significantly larger than any yeast cell.

* Yeast cells can also vary in size depending on the species and growth conditions.

Therefore, while yeast cells are generally larger, it's not always a strict rule.