Question

In the bread mould (Rhizopus), the structures labeled A and B are respectively:

• A. Mycelium and spores
• B. Root and sporangium
• C. Mycelium and sporangium
• D. Root and spores

Hint:

In fungi like Rhizopus, A = mycelium and B = sporangium (spore-producing structure).

Answer 1

The Correct Option is C

Bread mould, commonly known as Rhizopus, is a type of fungus that is often used to illustrate basic fungal structures in biological studies. In this context, we are tasked with identifying structures A and B on Rhizopus.

The correct answer provided is "Mycelium and sporangium". Let's briefly explore why this answer is accurate:

• Mycelium: This is a network of thread-like structures known as hyphae. The mycelium forms the main vegetative part of the fungus, helping it absorb nutrients from the substrate it grows on, such as bread.
• Sporangium: This is a structure that forms on the tips of the hyphae and is responsible for the production and release of spores. It appears as a rounded sac and is crucial for the reproduction of the fungus, enabling it to spread and colonize new environments.

When observed, the mycelium appears as a fibrous network, and the sporangia are typically seen as round, dark structures at the ends of some hyphae. These characteristics help in easily identifying the respective parts as mycelium (A) and sporangium (B) in the bread mould Rhizopus.