What is mycelium?

What is mycelium?

• A. A network of hyphae
• B. A type of spore
• C. A photosynthetic organ
• D. A root-like structure

Answer: (A)

The concept being tested is that mycelium is the filamentous feeding network of a fungus. It is formed by a mass of thread-like structures called hyphae growing together. This hyphal network—the mycelium—spreads through the surrounding material, secreting enzymes to break down complex substances and then absorbing the resulting nutrients. A spore is a reproductive unit, not the growth form you see spreading as food is broken down. Mycelium isn’t a photosynthetic organ; fungi don’t photosynthesize. And while hyphae can penetrate, anchor, or spread through substrates, the defining idea is the network of hyphae that constitutes the mycelium.

The concept being tested is that mycelium is the filamentous feeding network of a fungus. It is formed by a mass of thread-like structures called hyphae growing together. This hyphal network—the mycelium—spreads through the surrounding material, secreting enzymes to break down complex substances and then absorbing the resulting nutrients. A spore is a reproductive unit, not the growth form you see spreading as food is broken down. Mycelium isn’t a photosynthetic organ; fungi don’t photosynthesize. And while hyphae can penetrate, anchor, or spread through substrates, the defining idea is the network of hyphae that constitutes the mycelium.