Question

Radhika adds a teaspoon of curd to a bowl of milk and leaves it overnight to make a bowl of curd. Why did she add curd?​

Answer 1

Answer :Milk is converted into curd or yogurt by the process of fermentation. Milk consists of globular proteins called casein. The curd forms because of the chemical reaction between the lactic acid bacteria and casein. During fermentation, the bacteria use enzymes to produce energy (ATP) from lactose.