alleryCurd is formed from milk by the action of
ALactic acid bacteria (Lactobacillus)
BYeast (Saccharomyces cerevisiae)
CRhizobium
DStreptococcus
Answer & Solution
Correct answer: A. Lactic acid bacteria (Lactobacillus)
1. Curd formation is a microbial fermentation of milk.
2. syllabus names Lactobacillus and related lactic acid bacteria (LAB) as the agents.
3. They produce lactic acid that coagulates milk protein and gives the sour taste.
4. Vitamin B₁₂ content also increases during LAB fermentation.
_Source: syllabus Biology, Ch 8 "Microbes in Human Welfare", §8.1_
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