Study of bacteria is called as

Bacteria are microorganisms, they are not able to see with our unaided eyes. Study of micro organisms is called microbiology.

The study of bacteria is specifically called bacteriology. It is a branch of biology that focuses on understanding bacteria, their structure, function, growth, and their role in various environments.

Let’s look at the options:

Bacteriology: This is the correct answer because it is the specialized field dedicated to the study of bacteria.

Biotechnology: While biotechnology involves using living organisms (including bacteria) for practical applications, it is a broader field and not solely focused on studying bacteria.

Microbiology: This is the study of all microscopic organisms, including bacteria, viruses, fungi, and protozoa. Bacteriology is a subfield of microbiology.

All the above: This option is incorrect because bacteriology is a distinct field, even though bacteria are also studied under microbiology and used in biotechnology.

Thus, the correct answer is bacteriology.