Fungal structure and fungal components

Each fungal cell bound by a rigid cell wall contains chitin, glucan, and or  cellulose. Fungal cell walls are made up of approximately 80% polysaccharides,  3-20% protein, lipids, pigments and inorgnic salts. The structural components  consist primarily of chitin, beta and alpha glucals, glycoproteins, lipids,  pigments and inorganic salts. Mycologists divided the fungi into two groups 

the macroscopic fungi (mushrooms, puffballs, gill fungi) and microscopic  fungi (mold and yeast). Molds-multicellular filamentuous fungi characterized  by hyphae and mycelium. There are some fungal-like agents for example  Prototheca and Pythium species which have been traditionally discussed in the  category of fungi due to their resemblance with fungi. The terms yeast and  mold are not mutually exclusive since many fungi are molds in their normal  saprphytic growth but are yeast like under modified growth conditions in  animal tissues. Fungi whose predominant form is yeast or yeast like may  exhibit mold like structures when grown under appropriate conditions.