Are long, thread-like appendages which provide some live single cells with the ability to move, motility. Flagella are long, thread-like appendages which provide some live single cells with the ability to move, motility.
Flagella are long, thread-like appendages which provide some live single cells with the ability to move, motility. Bacteria which have flagella are either rod or spiral-shaped and are known as bacilli and spirochetes, respectively. Cocci, or round bacteria, are almost all nonmotile. Animal sperm cells also have flagella. However, prokaryotic cells (such as bacteria) have flagella made up of the protein flagellin. Whereas, eukaryotic cells (such as sperm) which have a nucleus have flagella composed of tubulin proteins. A flagellum is a whip-like structure that allows a cell to move. They are found in all three domains of the living world: bacteria, archaea, and eukaryota, also known as protists, plants, animals, and fungi. It is similar to a cilium in structure, though cilia generally move in a back and forth motion, as opposed to the corkscrew movement of a flagellum. The eukaryotic flagellum is a long, rod-like structure that is surrounded by an extension of the cell membrane like a sheath. Cilia are similar to flagella in structure and function, but a cilium is shorter and moves differently. A ciliated cell usually has hundreds or thousands of cilia, which move in unison like little oars. Sometimes a cell will also use cilia to funnel food into an oral groove. It is similar to a cilium in structure, though cilia generally move in a back and forth motion, as opposed to the corkscrew movement of a flagellum. The eukaryotic flagellum is a long, rod-like structure that is surrounded by an extension of the cell membrane like a sheath. A flagellum (/fləˈdʒɛləm/ ; plural: flagella) is a lash-like appendage that protrudes from the cell body of certain prokaryotic and eukaryotic cells. The word flagellum in Latin means whip. Flagella are organelles defined by function rather than structure. There are large differences between different types of flagella; the prokaryotic and eukaryotic flagella differ greatly in protein composition, structure, and mechanism of propulsion. Cilia and flagella are cell organelles that are structurally similar but are differentiated based on their function and/or length. Cilia are short and there are usually many (hundreds) cilia per cell. On the other hand, flagella are longer and there are fewer flagella per cell (usually one to eight). Though eukaryotic flagella and motile cilia are structurally identical, the beating pattern of the two organelles can be different. Bacteria can have a single flagellum or multiple flagella in a number of patterns. A single flagellum is located False-color transmission electron micrograph (TEM) of the aerobic soil bacterium Pseudomonas fluorescens, flagellae curving behind the orange cell, magnification at x10,000. Photograph by Dr. Tony Brain. Animal sperm cells also have flagella. However, prokaryotic cells (such as bacteria) have flagella made up of the protein flagellin. Whereas, eukaryotic cells (such as sperm) which have a nucleus have flagella composed of tubulin proteins. The evolution of flagella is of great interest to biologists because the three known varieties of flagella (eukaryotic, bacterial, and archaeal) each represent a sophisticated cellular structure that requires the interaction of many different systems.  Cilia and Flagella Cilia and flagella are motile cellular appendages found in most microorganisms and animals, but not in higher plants. In multicellular organisms, cilia function to move a cell or group of cells or to help transport fluid or materials past them. The respiratory tract in humans is lined with cilia that keep inhaled dust, smog, and potentially harmful microorganisms from entering the lungs. The primary role of the flagellum is locomotion but it also often has function as a sensory organelle, being sensitive to chemicals and temperatures outside the cell. Flagella are organelles defined by function rather than structure. There are large differences between different types of flagella; the prokaryotic and eukaryotic flagella differ greatly in protein composition, structure, and mechanism of propulsion. A flagellum is a whip-like structure that allows a cell to move. They are found in all three domains of the living world: bacteria, archaea, and eukaryota. While all three types of flagella are used for locomotion, they are structurally very different. It is similar to a cilium in structure, though cilia generally move in a back and forth motion, as opposed to the corkscrew movement of a flagellum. The eukaryotic flagellum is a long, rod-like structure that is surrounded by an extension of the cell membrane like a sheath.
http://science.jrank.org/pages/2725/Flagella.html http://study.com/academy/lesson/flagella-definition-structure-functions.html http://study.com/academy/lesson/flagella-definition-structure-functions.html https://en.wikipedia.org/wiki/Flagellum http://www.diffen.com/difference/Cilia_vs_Flagella http://science.jrank.org/pages/2725/Flagella.html https://en.wikipedia.org/wiki/Evolution_of_flagella http://micro.magnet.fsu.edu/cells/ciliaandflagella/ciliaandflagella.html https://en.wikipedia.org/wiki/Flagellum http://study.com/academy/lesson/flagella-definition-structure-functions.html
what is flagella