They grow as single cells that reproduce by asexual budding and oval or round in shape. Some yeast produce chains of elongated cells (pseudohypha) that resemble the mycelium of molds.

酵母菌是单细胞以无方式繁殖,通圆或卵圆。有些酵母菌能成假菌丝，类似霉菌的菌丝体。