Flagella and Cilia
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Flagella Flagella are necessary for the active movement of bacterial cells and protozoa. Flagella are single, whip-like structures that propel an organism through an aquatic environment. They use undulatory motions, where the waves of motion start at the base of the flagellum. The size, the volume of the medium, the length, position and width of the flagella on the organism determine the direction and speed propulsion of the cell. There are three different types of flagella movement. They are either planar, oarlike beating, or three dimensional waves. In the three dimensional wave movement, the flagella whips back and forth. As...
been a great deal of research done on them. Hancock made the first theoretical breakthrough in the mid-50's, although cilia have been known about for 250 years.

been a great deal of research done on them. Hancock made the first theoretical breakthrough in the mid-50's, although cilia have been known about for 250 years.
Both flagella and cilia move because of a set of microtubles which contain an inner cylindrical body known as the axoneme and an outer membrane. The membrane of the flagellum or cilia contain mastigonemes, tiny scales or hairs on the surface, which increase propulsive force.
Flagella and cilia both are important in our everyday lives. They are in many living organisms. They are similar in structure, with only a few minor differences.
The physical makeup of Neptune is very gaseous, it consists mainly of hydrogen and helium but about 2.5-3% of the planet is methane. The Voyager2 spacecraft reached Neptune in 1989 and observed a dark storm system with a bright core of feathery clouds. Wind speeds on Neptune reach 325 meters...
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It could be argued that current physics research could be divided into three areas - theoretical, experimental and computational. Numerical approach, in which systems are mimicked as accurately as possible using a computer or in which computer models are set up to provide well - behaved experimental systems are increasingly...
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Isaac Newton was born on Christmas day in 1642, in Lincolnshire, England. Newton attended Trinity College in 1661 and had both his Bachelor of Arts and his Master of Arts by 1669. That same year he became the associate of the French Academy of Sciences. He was elected to Parilment,...
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Atomic Number: 8 Atomic Radius: 66 pm Atomic Symbol: O Melting Point: -218.79 ?é??C Atomic Weight: 15.9994 Boiling Point: -182.95 ?é??C Electron Configuration: [He]2s22p4 Oxidation States: -2 History Gr. oxys: acid, and genes: forming For many centuries, workers occasionally realized air was composed of more than one component. The behavior...
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Anaemia is a disease of the blood. Anaemia is characterized by a deficiency in red blood cells or in the concentration of hemoglobin in the body. These deficiencies are caused by either decreased production or increased destruction of blood cells. Anaemia is most common among women in their reproductive years,...
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