Question

Common bread mold is

• A. Rhizopus oryzae
• B. Rhizobium species
• C. Rhizopus nedosus
• D. Rhizopus stolonifer

Answer 1

The correct option is D Rhizopus stolonifer

Rhizopus stolonifer is a thread like a mold and a heterotrophic species, it is dependant on sugar or starch for its source of carbon substances for food. It uses food matter, generally bread or soft fruits, like grapes or strawberries, as a food source for growth, nutrition and reproduction. R. stolonifer is a mass of mycelium, the vegetative filaments of the fungus, and a fruiting structure. Most of the mycelium is composed of multinucleate, rapidly growing hyphae. When the spores of the mold are released they produce more mycelium through germination. As the mold matures it begins to turn black.

So, the correct answer is option D.