alleryBread becomes spongy because the baker's yeast ferments carbohydrates and releases which gas into the dough?
ANitrogen
BOxygen
CCarbon dioxide
DSulphur dioxide
Answer & Solution
Correct answer: C. Carbon dioxide
1. Saccharomyces cerevisiae ferments sugar in the dough.
2. The fermentation produces carbon dioxide and ethanol.
3. The carbon dioxide makes the dough rise and the bread spongy.
_Source: Balbharati (Maharashtra Board) Class 10 Science & Technology Part 2, Ch 7 "Introduction to Microbiology", p.88_
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