Yeasts

Definition

Yeasts are unicellular fungi that reproduce asexually by budding or binary fission. They are used in various industries and play a crucial role in fermentation processes.

5 Must Know Facts For Your Next Test

1. Yeasts belong to the phylum Ascomycota or Basidiomycota.
2. Saccharomyces cerevisiae is a widely studied yeast species, essential for baking and brewing.
3. Yeasts can undergo both aerobic respiration and anaerobic fermentation.
4. Some yeast species, such as Candida albicans, can cause infections in humans.
5. Yeast cells contain organelles typical of eukaryotic cells, such as nuclei and mitochondria.

Review Questions

• What are the main methods of reproduction in yeasts?
• Name one industrial application of Saccharomyces cerevisiae.
• How do yeast cells differ from bacterial cells in terms of cellular structure?

Related terms

Fungi:

A kingdom of eukaryotic organisms that includes yeasts, molds, and mushrooms.

Fermentation:

A metabolic process that converts sugar to acids, gases, or alcohol in the absence of oxygen.

Candida albicans:

A common yeast that can cause opportunistic infections in humans.