Question

Deepak saw that when her mother added some curd to lukewarm milk, then milk gets converted into the curd next day. Why does this happen?​

Answer 1

Lactobacillus belongs to the group of bacteria which through fermentation converts the sugars into lactic acid in the absence of oxygen. This bacterium is added to the milk in the form of already synthesized curd where they multiply and convert lactose sugar into lactic acid. The lactic acid which is produced gives a sour taste and the milk is converted to curd.

Thus, the correct answer is ...

Answer 2

Answer

Correct option is

B

b, c

Lactobacillus belongs to the group of bacteria which through fermentation converts the sugars into lactic acid in the absence of oxygen. This bacterium is added to the milk in the form of already synthesized curd where they multiply and convert lactose sugar into lactic acid. The lactic acid which is produced gives a sour taste and the milk is converted to curd.  

Thus, the correct answer is option B.