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Everyday Science Easy PPSC NTS Uploaded: 05 Aug 2026

Which process in bread making causes dough to rise releasing CO2?

  • A Oxidation of flour
  • B Protein denaturation
  • C Fermentation by yeast
  • D Sublimation of water
Correct Answer: Option C — Fermentation by yeast
Explanation:
Yeast in bread dough ferments sugars and releases carbon dioxide gas which gets trapped in the dough forming bubbles causing it to rise and giving bread its light airy texture.
Submitted by: PaperMCQs
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