Bacteria Study Notes

1. What are 'bacteria'?

Bacteria belong to the Monera kingdom, which consists of single-celled, prokaryotic microorganisms.

2. What is the part of the bacterial cell responsible for resistance?

Plasmid.

A plasmid is a circular loop of DNA that contains genes that benefit the bacteria, such as those for antibiotic resistance.

3. What are obligate anaerobic bacteria?

Obligate anaerobic bacteria are bacteria that can only survive in the absence of oxygen.

4. What are facultative bacteria?

Facultative bacteria can survive in both the presence and absence of oxygen.

5. Indicate two structural features in bacteria that support them being part of the prokaryotic/monera kingdom.

Organisms in the Prokaryotic (Monera) Kingdom:

1. Lack membrane-bound organelles (e.g., no nucleus or mitochondria).
2. Have a circular strand of DNA that is not enclosed within a membrane.

6. What are antibiotics?

Antibiotics are substances produced by microorganisms that kill or prevent the growth of bacteria and fungi.