Multiple choice

Yeast is used in the production of

  1. acetic acid

  2. citric acid

  3. ethyl alcohol

  4. curd

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

By fermentation, the yeast species Saccharomyces cerevisiae converts carbohydrates to carbon dioxide and alcohols. For thousands of years, the carbon dioxide has been used in baking and the alcohol in alcoholic beverages.