Question

Bacteria which can also live in the absence of oxygen are

• A. Obligate aerobes
• B. Facultative aerobes
• C. Obligate anaerobes
• D. Facultative anaerobes

Answer 1

The correct option is D Facultative anaerobes

• Bacteria that cannot live in the absence of oxygen are called obligate aerobes. Example includes Mycobacterium tuberculosis.
• Bacteria that can also live in the presence of oxygen are called facultative aerobes. Examples include Escherichia coli, Salmonella spp.
• Bacteria that cannot live in the presence of oxygen are called obligate anaerobes. Examples include Clostridium botulinum, Fusobacterium.
• Bacteria that can also live in the absence of oxygen are called facultative anaerobes. Examples include Corynebacterium spp., Syphilis.

Thus, the correct answer is 'Facultative anaerobes.'