Question

Define microorganisms. Name the 4 major groups of
microorganisms. Give one example for each of these groups

Answer 1

Answer:

The major groups of microorganisms—namely bacteria, archaea, fungi (yeasts and molds), algae, protozoa, and viruses—are summarized below. Links to the more detailed articles on each of the major groups are provided.

Explanation:

Microorganisms are the small organisms that cannot be seen with naked eyes. Major groups of microorganisms are bacteria, virus, protozoa and algae. Bacteria are the prokaryotic, unicellular organisms while viruses are acellular. Protozoans are single celled eukaryotic mostly aquatic organisms. Algae are chlorophyll containing photosynthetic eukaryotic single to multiple celled organisms.

Answer 2

Answer:

Microorganisms are microscopic, which includes bacteria, fungi, archaea or protists. Microorganisms differ from each other in size and structure, habitat, metabolism, and many other characteristics. Most bacteria are harmless or helpful, but some are pathogens, causing disease in humans and other animals.

Bacteria They are single-celled disease-causing micro-organisms. They can be spiral or rod-shaped.

Fungi They are mostly multicellular disease-causing microbes. Bread moulds are common examples of fungi.

Protozoa They mainly include organisms such as Amoeba, Plasmodium, etc. They can be unicellular or multicellular.