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SSC MTS 2022 PYQ — Question 27

SSC MTS - 25 July 2022 - Shift 3 • General Awareness • Q27

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When the bread rises and bakes, ______creates thousands of bubbles in the dough.

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Correct answer: D

Explanation

The correct answer is Option 4 i.e. carbon dioxide.

  • The aeration or 'leavening' of bread dough is usually achieved by adding yeast, a single celled fungus that ferments sugar molecules, generating carbon dioxide and alcohol as by-products.
  • The CO2 inflates gas bubbles causing the dough to rise.
  • It has been suggested that humans used yeast to produce food and beverages before they 'domesticated' any plant or animal, which would make yeast the oldest 'cultivated' organism.