Podcast Beta
Questions and Answers
Biotechnology began thousands of years ago with ______.
fermentation
The process was used to make bread, cheese, yoghurt, wine, beer, and ______.
vinegar
Several types of microorganisms included ______.
yeast
Yeast uses enzymes to break the glucose into alcohol, carbon dioxide, and ______.
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Bakers continue to add yeast to bread dough to make it ______.
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The yeast is killed and fermentation stops. The alcohol evaporates, producing the smell associated with baked ______.
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