The human body is made up of many cells. We cannot see cells with our naked eyes. However, cells are very important. Cells work together to perform various functions. Nerve cells are the biggest cells in the body. While red blood cells are the smallest.
What is yeast?
We use yeast to make bread. Without it, our bread would be flat or hard. Yeast is also used to make alcoholic beverages. Yeast belongs to the fungus family. Yeast reproduces by changing sugar into alcohol.