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Topic: Paramecium

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	NationMaster - Encyclopedia: Paramecium
		The Paramecium is a group of unicellular ciliate protozoa formerly known as slipper animalcules from their slipper shape.
		Certain single-celled eukaryotes, such as Paramecium, are examples for exceptions to the universality of the genetic code (translation systems where a few codons differ from the standard ones).
		Paramecium is a well-known genus of ciliate protozoa, formerly known as slipper animalcules from their slipper shape.
	www.nationmaster.com /encyclopedia/Paramecium (1453 words)

	Paramecium - Wikipedia, the free encyclopedia
		Paramecium is a well-known genus of ciliate protozoa, formerly known as slipper animalcules from their slipper shape.
		In a popular computer program, Chip's Challenge, the main character encounters a cartoon paramecium, one of the many monsters that he must overcome.
		In the Homestar Runner universe, the gang were a "bunch o' parameciums" before they were in middle school.
	en.wikipedia.org /wiki/Paramecium (220 words)

	Paramecium tetraurelia
		Paramecium is an organism which is both unicellular and complex; it is therefore an excellent model for the genetic study of the numerous differentiated functions in multicellular organisms which are absent in simpler eukaryotes such as yeast.
		It is in Paramecium that the first mutants for ion channels were isolated at the end of the sixties, as well as the first mutants for calmodulin (an ubiquitous protein which regulates many cell processes in response to changes in calcium concentration).
		August 1999: Following an initiative of the "Genetics of cellular dynamics in Paramecium" Group at the CNRS Molecular Genetics Center in Gif-sur-Yvette, a consortium of 11 European and North American laboratories was formed to autofinance a pilot project for the random sequencing of the genome of Paramecium.
	www.genoscope.cns.fr /externe/English/Projets/Projet_FN/organisme_FN.html (1602 words)

	Paramecium: AG Schmidt
		One of the most important subjects were the “surface antigens” of Paramecium, proteins located on the outer membrane with unidentified function in free living protists –; in contrast to their obvious usage in parasitic protozoa, being able to evade the hosts immune system by changing the antigen-coat on the surface.
		Paramecium is a free-living ciliate, occurring ubiquitously in freshwater habitats.
		Using the serotype-systems of Paramecium, with all the sequences now identified, the worldwide collection of strains, and the antisera produced against different serotypes, Paramecium was characterized to be a perfect organism to study the phenomenon of serotype-expression.
	www.uni-kl.de /wcms/2697.html (310 words)

	Paramecium
		The most common types used in the classroom are the Paramecium caudatum and the Paramecium multimicronucleatum (because of its size).
		Paramecium bursaria is one of the smallest species and appears green due to the presence of its symbiotic partner, Zoochlorella.
		The green algae uses the waste from the paramecium as food and in turn supplies oxygen for the paramecium to use.
	www.microscope-microscope.org /applications/pond-critters/protozoans/ciliphora/paramecium.htm (139 words)

	Paramecium Coloring
		Paramecium are unicellular protozoans classified in the phylum Ciliophora (pronounced sill-ee-uh-FORE-uh), and the Kingdom Protista.
		Paramecium are heterotrophs, meaning they must consume food for their energy.
		Is the paramecium a unicellular or multicellular organism?
	www.biologycorner.com /worksheets/paramecium_color.html (409 words)

	MICSCAPE - Article on Pond Life: Paramecium
		Although Paramecium is a small organism, it has a complex structure and a microscope, stains and a degree of skill are needed to reveal all the details.
		Paramecium has a permanent feeding mechanism, consisting of a funnel-shaped gullet into which food is drawn by the combined action of cilia which cover the body and other cilia lining the gullet.
		Paramecium is not one species but the name of the genus to which a number of species belong e.g.
	www.microscopy-uk.org.uk /mag/articles/param1.html (897 words)

	Paramecium tetraurelia
		Paramecium is an organism which is both unicellular and complex; it is therefore an excellent model for the genetic study of the numerous differentiated functions in multicellular organisms which are absent in simpler eukaryotes such as yeast.
		It is in Paramecium that the first mutants for ion channels were isolated at the end of the sixties, as well as the first mutants for calmodulin (an ubiquitous protein which regulates many cell processes in response to changes in calcium concentration).
		August 1999: Following an initiative of the "Genetics of cellular dynamics in Paramecium" Group at the CNRS Molecular Genetics Center in Gif-sur-Yvette, a consortium of 11 European and North American laboratories was formed to autofinance a pilot project for the random sequencing of the genome of Paramecium.
	www.genoscope.org /externe/English/Projets/Projet_FN/organisme_FN.html (1602 words)

	Paramecium - MicrobeWiki
		Paramecium may eject trichocyts when they detect food, in order to better capture their prey.
		Paramecium are capable of both sexual and asexual reproduction.
		Paramecium are also well known as prey for Didinium.
	microbewiki.kenyon.edu /index.php/Paramecium (504 words)

	Paramecium and fish fry food as well as food for larvae newts
		Paramecium live in water and will eat bacteria that are generally found in aquariums.
		Now the paramecium won't do too well in the aquarium as there is not enough bacteria to keep them multiplying and of course the fish eat the paramecium.
		Of course if you over feed and the paramecium don't find enough to eat, they will die and foul the water, but the up side of the deal is that you can feed once a day and expect that the fry will be able to feed at will.
	www.livefoodcultures.com /paramecium.html (1064 words)

	Paramecium
		The paramecium is shaped sort of like a football, rounded at the front/top and pointed at the back/bottom.
		Inside the paramecium is cytoplasm, trichocysts, the gullet, food vacuoles, the macronucleus, and the micronucleus.
		For the paramecium to move forward the cilia beat on an angle, backward.
	www.geocities.com /garrah18/paramecium.html (418 words)

	Paramecium - www.101science.com
		Rediscovery of Paramecium duboscqui Chatton and Brachon, 1933, and a
		paramecium of muller 1773 synonym paramaecium of muller
		Mutation in the Protozoan Paramecium multimicronucleatum as a
	www.101science.com /paramecium.htm (1869 words)

	Olympus Microscopy Resource Center: Specialized Microscopy Techniques - Phase Contrast Photomicrography Gallery - ...
		Paramecium are protozoans that are shaped like a bedroom slipper, and which swim rapidly in a corkscrew fashion by means of an army of cilia that operate in wavelike movements.
		Like other protozoans and bacteria, paramecium reproduce several times a day by either binary fission (division into two daughter cells) or by conjugation where DNA is exchanged between two adjacent cells.
		The paramecium swims by rotating along its longer axis and is constantly in search of food, which is swept into the organism by a series of cilia that line the oral groove and gullet.
	www.olympusmicro.com /primer/techniques/phasegallery/paramecium.html (265 words)

	Paramecium Anatomy - Picture - MSN Encarta
		A paramecium is a microscopic, slipper-shaped organism that lives in fresh waters throughout the world.
		The paramecium eats tiny organisms, such as bacteria, that are swept by the cilia into an indentation in the cytostome called the oral groove.
		The organisms are eventually passed into a food vacuole, a small, round structure where food is digested, and are then passed into the cytoplasm.
	encarta.msn.com /media_221638700/Paramecium_Anatomy.html (125 words)

	Nikon MicroscopyU Movie Gallery: Paramecium (Protozoan)
		Paramecium Video No. 1 - An up close and personal look at the internal workings of a paramecium; under darkfield illumination at a magnification of 400x with a playing time of 24.9 seconds.
		Paramecium Video No. 3 - The ripples of motion seen surrounding this paramecium are from beating cilia that cover the exterior of the organism; under phase contrast illumination at a magnification of 100x with a playing time of 47.7 seconds.
		Paramecium Video No. 4 - Two paramecia are joined, probably undergoing conjugation, a process of exchanging nuclear materials; under phase contrast illumination at a magnification of 200x with a playing time of 19.5 seconds.
	www.microscopyu.com /moviegallery/pondscum/protozoa/paramecium/index.html (299 words)

	Nikon MicroscopyU Movie Gallery: Paramecium (Protozoan)
		Paramecium Video No. 1 - An up close and personal look at the internal workings of a paramecium; under darkfield illumination at a magnification of 400x with a playing time of 24.9 seconds.
		Paramecium Video No. 3 - The ripples of motion seen surrounding this paramecium are from beating cilia that cover the exterior of the organism; under phase contrast illumination at a magnification of 100x with a playing time of 47.7 seconds.
		Paramecium Video No. 4 - Two paramecia are joined, probably undergoing conjugation, a process of exchanging nuclear materials; under phase contrast illumination at a magnification of 200x with a playing time of 19.5 seconds.
	microscopyu.com /moviegallery/pondscum/protozoa/paramecium/index.html (299 words)

	Infusoria and Paramecium Cultures
		In each case, Paramecium culture was added directly to the fry tank as the sole food for the first couple of weeks and in conjunction with live brine shrimp nauplii for another week or so, until all the fry were easily consuming the nauplii.
		The use of Paramecium cultures to raise fry has become widespread throughout the scientific community because of the importance of zebra danios as laboratory animals, and this culture has also proven itself to be very useful in my own fishroom.
		Paramecium is not only described as a form of plankton, which it is not, but further described as "these sting and are scorned by fry".
	www.calgaryaquariumsociety.com /Articles/Infusoria_And_Paramecium_Cultures.html (2902 words)

	Paramecium, the lowly fellers
		The Genus Paramecium is commonly found throughout the world, in fresh and marine water containing bacteria and decaying organic matter.
		Paramecium swims forward propelled by the coordinated motion of the cilia.
		Paramecium responds to a variety of physical and chemical stimuli, usually by an 'avoidance' maneuver, always turning to the left, the side away from the mouth, and advancing again in the new direction.
	www1.broward.edu /~ssimpson/JMDelvecchio-Paramecium.htm (1011 words)

	Paramecium Culture Directions
		Paramecium are a large single celled bacteria with a body large enough for humans and fish fry to see.
		When clear the paramecium should be visible with the naked eye or with a magnifying glass or the naked eye.
		Paramecium are attracted to light and will also gather at the top of the bottle if oxygen is low.
	www.e-aquarium.com.au /paramecium-culture.htm (429 words)

	Swimming Behaviour of the Ciliate Paramecium in Weightlessness (TEXUS 27 and TEXUS 28)
		The centrifugal spin during launch was perceived by Paramecium, resulting in a higher precision of the negative gravitaxis than in 1 g.
		Cellular elements are discussed as possible gravireceptors in Paramecium: the whole cytoplasm via opening of specific ion channels in the membrane of the cell or heavy cell organelles in interaction with the cytoskeleton and membranes.
		Paramecium biaurelia in their original culture medium (straw medium, pH 7.2) were enriched without centrifuging to exclude acceleration effects before the beginning of the experiment.
	esapub.esrin.esa.it /sp/sp1206/hemme.htm (1953 words)

	Protozoa: Ciliates: An introduction with photomicrographs of holotrich ciliates.
		Paramecium is probably the protozoan most frequently used as an example of a motile single-celled organism in school and university textbooks.
		Paramecium was formerly exampled as the classic holotrich ciliate, but in recent reclassifications, it is now variously placed with the Hymenostomata, the Vestibulata or the Nassophorea depending on the actual system.
		Paramecium bursaria is found in similar locations to the Paramecia shown above, but under less polluted conditions (as seen here) is capable of harbouring within its body numerous algal unicells.
	www.micrographia.com /specbiol/protis/cili/cili0100.htm (1518 words)

	Ron's Pond Scum
		Paramecium caudatum, an image of one of the more common Paramecium types and one of the smaller varieties, growing to about 125 microns in size.
		Paramecium bursaria, a species of Paramecium that appears green because of the presence of symbiotic Zoochlorella.
		Click on this link to see a swarm of Paramecium inside a speck of water that is smaller than the "period" on your keyboard's "period key".
	www.silkentent.com /gus1911/RonPond.htm (1631 words)

	paramecium — FactMonster.com
		The paramecium has a stiff outer covering that gives it a permanent slipper shape.
		A paramecium normally moves forward in a corkscrew fashion but is capable of reversing direction when it encounters adverse conditions.
		The paramecium has an external oral groove lined with cilia and leading to a mouth pore and gullet; food (typically smaller organisms, such as bacteria) is digested in food vacuoles.
	www.factmonster.com /ce6/sci/A0837592.html (306 words)

	Structure of a paramecium
		Cilia: minuscule cilia that envelop the paramecium and are used for locomotion.
		Canals of contractive vacuole: division of the contractile cavity of a paramecium.
		Trochocyst: root of a vibrative cilium of a paramecium.
	www.infovisual.info /02/004_en.html (96 words)

	Paramecium
		Species of Paramecium can be distinguished from other ciliates by their cigar or slipper shape and the undulating membrane within the peristome - a furrow that leads to the cytostome, where food vacuoles are formed.
		One way to concentrate Paramecium is to centrifuge the culture medium at a few hundred x g, preferably using conical tubes and a swinging bucket rotor.
		Paramecium are so large that the cells are easily found in bright field without using high contrast.
	www.ruf.rice.edu /~bioslabs/studies/invertebrates/paramecium.html (1218 words)

	Paramecium \| World of Microbiology and Immunology
		Paramecium are single celled eukaryotes, reminiscent of a football in shape, that belong to the group of microorganisms known as the Protozoa.
		Paramecium are large enough to be visible to the unaided eye.
		Paramecium contain organized structures called vacuoles that are essentially a primitive mouth, stomach, and excretion system.
	www.bookrags.com /research/paramecium-wmi (407 words)

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