Multiple choice

Which of the following organism is an example of yeast?

  1. Mucor

  2. Penicillium notatum

  3. Aspergillus niger

  4. Saccharomyces crevisae
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D Correct answer
Explanation

Saccharomyces cerevisiae (spelled with 'cerevisiae' not 'crevisae') is a yeast fungus used in baking and brewing. Mucor, Penicillium, and Aspergillus are all molds (filamentous fungi), not yeasts which are unicellular.

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