Amoebae
Amoebae
Amoebae (pronounced: /əˈmiːbiː/) are a group of unicellular organisms that move in an "amoeboid" manner. The term "amoeba" or "amoeboid" is often used to refer to any unicellular organism that moves using pseudopodia, regardless of its taxonomic classification.
Etymology
The term "amoeba" comes from the Greek word "amoibe," which means "change." This is a reference to the constantly changing shape of an amoeba due to its pseudopodia.
Characteristics
Amoebae are characterized by their flexible cell membranes, which allow them to form temporary extensions called pseudopodia. These pseudopodia are used for movement and for engulfing food in a process known as phagocytosis.
Amoebae are typically found in water, soil, and as parasites in other organisms. Some species of amoebae, such as Entamoeba histolytica, can cause disease in humans.
Related Terms
- Protozoa: A group of unicellular organisms, which includes amoebae.
- Pseudopodia: Temporary extensions of the cell used for movement and feeding.
- Phagocytosis: The process by which cells engulf particles to form an internal compartment known as a phagosome.
- Entamoeba histolytica: A species of amoeba that can cause disease in humans.
External links
- Medical encyclopedia article on Amoebae
- Wikipedia's article - Amoebae
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