20 Examples of Unicellular Organisms

The single-celled organisms are part of our life through such everyday elements as bread or wine (which are made with ferments or yeasts, unicellular organisms), we even usually have them in the intestine or on the skin, without this meaning be sick.

We also consume dietary supplements based on algae, for example, or we apply cosmetic products that are obtained from them.

All the living beings They present different degrees of complexity in terms of their structure or internal organization, that is why we have:

In the latter, all vital functions depend on that single cell, which can be prokaryotic (with free nuclear material in the cytoplasm) or eukaryotic (with nuclear material enclosed in the nuclear membrane). That single cell is self-regulating and directs all vital functions.

See also: Prokaryotic and eukaryotic cells

Characteristics of single-celled organisms

Obviously unicellular organisms cannot be seen with the naked eye (since a cell is always something very small), but with microscopes.

The fact of being such small individuals has a series of advantages:

In general reproduce by bipartition (cell division), some may also present budding and sporulation phenomena, all these processes are based on mitosis.

Many single-celled beings they group together forming colonies. In the case of bacteria, which are unicellular, outside the cell there is an additional structure called the wall, which has important functions.

We can find single-celled organisms in three of the five kingdoms in which living beings are divided:

Examples of single-celled organisms

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