Question

The bacteria which can survive without oxygen is called 

1. Anaerobic bacteria
2. Pathogenic bacteria
3. Aerobic bacteria
4. Non-pathogenic bacteria

Answer 1

Correct Answer - Option 1 : Anaerobic bacteria

Explanation:

Bacteria: 

These are microscopic unicellular plants or organisms. For the study of sanitary engineering, they are divided into three groups are as follows:

Aerobic bacteria:

The bacteria that grow in the presence of oxygen are called aerobic bacteria. Example: Nocardia, Bacillus

Anaerobic bacteria:

The bacteria that grow in the absence of oxygen are called anaerobic bacteria. It does not have the ability to detoxify oxygen.  Example: E.coli 

Facultative bacteria:

The bacteria that grow in both condition that is in presence of oxygen as well as in the absence of oxygen is called facultative bacteria.