What is the yeast also called?

Yeast:

1. Since ancient times, yeast, a single-cell eukaryotic microbe, has been used in brewing, baking, and winemaking.
2. Many crucial proteins for human biology have been studied in yeast to better understand their functions.
3. The cell cycle, an orderly series of processes in which a cell multiplies its contents and divides into two, was sorted out through research on yeast.
4. Yeast is the common name for Saccharomyces cerevisiae.