Blue Mold Sporangiophores

Molds are members of the Fungi kingdom, and are therefore neither plant nor animal. While many species of mold possess physical features strongly reminiscent of plants, such as stalk-like growths and plant-like cell walls, these resemblances are merely superficial. For example, the cell walls of plants are composed of cellulose, whereas a mold's cell wall is made of chitin. Furthermore, molds have no chlorophyll and are unable to produce their own food by means of photosynthesis. Rather, molds are heterotrophs and must obtain nutrients by consuming organic materials, a process achieved by secreting digestive enzymes that break down food materials into absorbable form.