yeast
Yeasts are single-celled fungi. This topic is part of Biology within Science & Nature. This page currently draws on 26 supporting questions, with answers and bonus facts available below.
yeast trivia questions
Yeast is what type of organism?
Answer: Fungus
Bonus fact: Yeasts are single-celled fungi.
In bread dough, yeast produces what gas?
Answer: Carbon dioxide
Bonus fact: Gas bubbles make dough rise.
What process lets yeast convert sugars into alcohol and carbon dioxide without oxygen?
Answer: Fermentation
Bonus fact: Alcoholic fermentation is central to bread and brewing.
In beer brewing, yeast converts sugars mainly into alcohol and what gas?
Answer: Carbon dioxide
Bonus fact: Alcoholic fermentation produces ethanol and carbon dioxide.
What gives yeast-raised doughnuts their light texture?
Answer: Fermentation
Bonus fact: Yeast produces carbon dioxide that expands the dough.
What yeast species is widely used to ferment many ales?
Answer: Saccharomyces cerevisiae
Bonus fact: Saccharomyces cerevisiae is a common ale and bread yeast.
Yeast fermentation converts sugars into carbon dioxide and what?
Answer: Alcohol
Bonus fact: Yeast produces ethanol and carbon dioxide under anaerobic conditions.
What gas from yeast fermentation makes bread dough rise?
Answer: Carbon dioxide
Bonus fact: Gas bubbles become trapped in the dough.
Which yeast species is widely used in bread and brewing?
Answer: Saccharomyces cerevisiae
Bonus fact: S. cerevisiae is often called baker's or brewer's yeast.
What fungal genus commonly causes thrush and yeast infections?
Answer: Candida
Bonus fact: Candida species normally live on the body but can overgrow.
Which broad group of microorganisms includes mushrooms, molds, and yeasts?
Answer: Fungi
Bonus fact: Fungal cells have nuclei, and many fungi are multicellular.
What process converts sugars into alcohol during brewing?
Answer: Fermentation
Bonus fact: Yeast ferments sugars into ethanol and carbon dioxide.