Question

Lactobacillus that sets milk into curd is categorised as:

• A. Cyanobacteria
• B. Archaebacteria
• C. Chemosynthetic bacteria
• D. Heterotrophic bacteria

Hint:

Bacteria classification: - Heterotrophic bacteria: Depend on organic matter. - Cyanobacteria: Photosynthetic. - Archaebacteria: Survive extreme environments.

Answer 1

The Correct Option is D

\textit{Lactobacillus} is a heterotrophic bacterium that converts lactose in milk into lactic acid, resulting in curdling.
This bacterium metabolizes lactose in milk, generating lactic acid and consequently coagulating the milk.