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Lactic acid bacteria coagulate milk protein by producing:
ABases
BSalts
CGases
DAcids
Answer & Solution
Correct answer: D. Acids
1. The bacteria grow rapidly in warm milk.
2. Their metabolism releases a product that curdles it.
3. They produce acids that coagulate the proteins.
4. So the answer is acids.
_Source: NCERT Class 12 Biology, Ch 8 'Microbes in Human Welfare'_
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