Question

Which micro-organism is utilized in making curd from milk ?

Answer 1

Answer:

Lactobacillus bacteria is the answer

Answer 2

Lactobacillus bacteria

Explanation:

Milk is converted into curd by fermentation. Milk consists of globular proteins called casein. The curd forms because of the chemical reaction between the lactobacillus and casein. Lactobacillus is a bacteria that's present in milk. During fermentation, the bacteria use enzymes to produce energy (ATP) from lactose. The byproduct of ATP production is lactic acid. Lactic acid acts on the globular proteins present in the milk and denatures them. This denaturation destroys the tertiary and quaternary structures of proteins and the globular proteins are converted into fibrous proteins thus giving a thick texture to the milk due to coagulation of the proteins.