Examples of Unicellular Organisms
Some common examples of unicellular organisms include :
- Eubacteria: All bacteria are unicellular prokaryotes. Examples: Clostridium sp. , Streptococcus sp. , Lactobacillus sp. etc.
- Archaebacteria: All of them are unicellular prokaryotes and are predominantly inhabit extreme conditions like ice capped mountains, hot springs, acidic pools, etc. They include acidopiles , thermophiles, methanogens, etc.
- Cyanobacteria: These organisms are similar to bacteria but have chlorophyll. They are photoautotrophs and are thought to be the first photosynthetic organisms to evolve on earth. E.g. Nostoc, Gleocapsa, etc.
- Protists: Protists include wide range of unicellular eukaryotic organisms. These organisms are further grouped as protozoans, diatoms, dinoflagellates, slime moulds, euglenoids, etc. E.g. Amoebas, Euglena, Paramecium,etc.
- Fungi: Yeasts are fungi that are unicellular. Examples include Sachharomyces sp.
Unicellular Organisms
Organisms that consist of a single cell are referred to as unicellular organisms. All living organisms are made up of cells. They can be composed of a single cell or multiple cells. They include bacteria, archaea, protozoans, unicellular algae, and yeasts. These organisms exhibit high adaptability to the environment and have developed uniquely advanced features to resist adversities despite having such simple body plans. Unicellular organisms have a significant ecological impact and are also used in several different fields of scientific and industrial research.
Table of Content
- What are unicellular organisms?
- Characteristics of Unicellular Organisms
- Types of Unicellular Organisms
- Examples of Unicellular Organisms
- Evolution of Unicellular Organisms
- Reproduction in Unicellular Organisms
- Nutrition In Unicellular Organisms
- Ecological Significance of Unicellular Organisms