Question

Common bread mold is

• A. Rhizopus
• B. Yeast
• C. Bacteria
• D. Virus

Answer 1

Answer: (A)

Rhizopus stolonifer is a thread like mold and a heterotrophic species, it is dependent on sugar or starch for its source of carbon substances for food. It uses food matter, generally breads 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 molds spores are released they produce more mycelium through germination. As the mold matures, it begins to turn black.

Thus, the correct answer is option B.