noun
yeast cell; yeast (microorganism)
Refers to the yeast organism itself, often in scientific or culinary contexts. Not to be confused with イースト (yeast as a baking ingredient).
パン作りにはイースト菌が必要です。
Yeast is necessary for bread making.
イースト菌は糖分を分解してアルコールを
Yeast cells break down sugar and produce alcohol.