CLASSIFICATION OF MICROORGANISMS

Question 1

What are the three domains of life?

Answer 1

1) Bacteria - prokaryotic, unicellular organisms with diverse metabolic pathways.
2) Archaea - prokaryotic organisms distinct from bacteria, often extremophiles.
3) Eukarya - eukaryotic organisms, including all multicellular life forms like plants, animals, fungi, etc.

Question 2

What are the main types of cellular organisms?

Answer 2

1) Bacteria (Prokaryotic, unicellular with diverse metabolic pathways)
2) Archaea (Prokaryotic, unicellular but distinct from bacteria, often are extremophiles)
3) Eukarya (Eukaryotic, either uni- or multicellular, includes; plants, animals, fungi, protists)

Question 3

What are acellular infectious agents?

Answer 3

These include viruses, viroids, and prions, which are not classified as living organisms and require a host to reproduce.