Kingdom Fungi

Two eukaryotic fungal groups & their environments:

Unicellular yeast (warmer environments).

Multicellular mold (colder environments).

Domain and cell type of Kingdom Fungi

Domain Eukarya; eukaryotic cells.

How mold acquires nutrients

Secretes extracellular enzymes to decompose organic waste, absorbs nutrients through hyphae (unique to fungi).

Saprobe

Organism that lives off dead/decaying organic material.

Hyphae

Long, branching filamentous structures; absorb nutrients from environment.

Mycelium

A collection or mass of hyphae.

Sporangium, what is it & location?

A spore-bearing structure.

• Located @ the ends/tips of hyphae.

Mold spores

Released from sporangia, disseminated through air for reproduction;

• examples: conidia, zygospores.

What happens when a spore lands and grows

Becomes new hyphae → new mold.

Non-septated hyphae

One long cell, multiple nuclei, no septum.

Septated hyphae

Multiple cells, single nucleus each, separated by septum.

Yeast commercial uses

Alcohol and bread-making industries.

Budding

Asexual yeast reproduction; small portion of parent cell pinches/buds off to form daughter cell.