As verbs the difference between up and bread is that up is to upturn, to turn over while bread is...
Yeast is a single-celled fungus while Mucor is a multicellular fungus. So, this is the key difference between yeast and mucor. Furthermore, yeast is not a mould while Mucor is a mould. Therefore, this is also a difference between yeast and mucor. Below infographic summarizes the difference ...