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	Cell membrane - Wikipedia, the free encyclopedia
		The foundation is a phospholipid bilayer, and the membrane as a whole is often described as a fluid mosaic – a two-dimensional fluid of freely diffusing lipids, dotted or embedded with proteins, which may function as channels or transporters across the membrane, or as receptors.
		The model was first proposed by S.J. Singer (1971) as a lipid protein model and extended to include the fluid character in a publication with G.L. Nicolson in "Science" (1972).
		Phospholipid molecules in the cell membrane are "fluid," in the sense that they are free to diffuse and exhibit rapid lateral diffusion.
	en.wikipedia.org /wiki/Fluid_mosaic_model (1239 words)

	Development of a scientific fact - the cell membrane
		The fluid mosaic model of a biological membrane defines a phospholipid bilayer mixed with (integral) membrane proteins.
		Fluid mosaic membrane model of the outer and inner membranes of a bacterial cell wall
		The fluid mosaic model, based on thermodynamic and functional considerations, postulated instead that proteins as the active components of signal transduction and transport, must and can span the entire thickness of a lipid bilayer.
	www.whatislife.com /education/fact/history.htm (1676 words)

	1.1 Membrane Structure and Composition (Site not responding. Last check: 2007-11-01)
		Lipid bilayers are fluid, and individual phospholipids diffuse rapidly throughout the two dimensional surface of the membrane.
		This is known as the fluid mosaic model of biological membranes (mosaic because it includes proteins, cholesterol, and other types of molecules besides phospholipids).
		There is a good diagram of the fluid mosaic model of a biological membrane in The WWW Cell Biology Course.
	web.mit.edu /esgbio/www/cb/membranes/structure.html (512 words)

	BBC - 16+ SOS Teacher - Biology cells Fluid mosaic model
		I understand the basic concepts of the model, but im not sure how to answer the question in simple terms as it is only worth 2 marks.
		The "fluid" part of its name refers to the fact that the lipid molecules and protein molecules are not rigid but have some movement within the membrane.
		The "mosaic" part refers to the pattern of phospholipids with the proteins studded between them – looking rather like a mosaic.
	www.bbc.co.uk /schools/16/sosteacher/biology/32733.shtml (171 words)

	Cell membrane - Facts, Information, and Encyclopedia Reference article
		Some of these proteins simply adhere to the membrane (extrinsic or peripheral proteins), while others might be said to reside within it or to span it (intrinsic proteins – more at integral membrane protein).
		Cholesterol molecules (in case of eukaryotes) or hopanoids (in case of prokaryotes) in the bilayer assist in regulating fluidity.
		In fact, not all lipid molecules in the cell membrane are "fluid," in the sense of free to diffuse.
	www.startsurfing.com /encyclopedia/c/e/l/Cell_membrane.html (855 words)

	Mosaic Guide
		Mosaics are an art form that has been around for thousands of years.
		Mosaic is the art of decoration with small pieces of colored glass, stone or other material.
		In medicine (genetics), a mosaic or mosaicism denotes the presence of two populations of cells with different genotypes in one patient, where usually one of the two is affected by a gene...
	mosaic-guide.com (1127 words)

	Molecule Illustrations
		In the simplified "sandwich model" of a cell membrane, a phospholipid bilayer is sandwiched between two layers of protein.
		In the "fluid mosaic model" of membrane structure, the membrane is a fluid phospholipid bilayer in which protein (glycoprotein) molecules are either partially or wholly embedded.
		The internal body fluids of a marine fish are hypotonic compared with the hypertonic sea water; therefore, water molecules diffuse out of the fish through the gill region.
	waynesword.palomar.edu /molecu1.htm (2598 words)

	The Fluid Mosaic Model (Site not responding. Last check: 2007-11-01)
		it has also been found that the membrane is not fixed in place but actually the membrane is moving as if it were a fluid, hence the word fluid in the name.
		It was also noted that certain proteins do not move because they are attached to the cytoskeleton, a network of microfilaments and microtubules that maintain the shape of the cell.
		a membrane is a collage of many different proteins embedded in the fluid matrix of the lipid bilayer.
	www.kvhigh.com /documents/notes/reid/mosaic.html (479 words)

	Botany online: Membranes and Transport
		This structure lends a tendency to form organized structures and monomolecular layers whose degree of organization is dependent on the length of the fatty acid residues and the number of double bonds to phospholipids.
		The lipids in the model form a double layer and the proteins are taken up by it.
		The model describes the membrane as a fluid mosaic.
	www.biologie.uni-hamburg.de /b-online/e22/22.htm (1136 words)

	fluid
		friction: The Nature of Fluid Friction - The Nature of Fluid Friction Fluid friction is observed in the flow of liquids and gases.
		pressure: Pressure of Fluids - Pressure of Fluids A fluid exerts a pressure on all bodies immersed in it.
		Cell Theory, Form, and Function—Fluid Mosaic Model of Membrane Structure and Function - Cell Theory, Form, and Function Fluid Mosaic Model of Membrane Structure and Function Cell Theory,...
	www.factmonster.com /ce6/sci/A0818994.html (128 words)

	Encyclopedia :: encyclopedia : Lipid raft (Site not responding. Last check: 2007-11-01)
		A lipid raft is a cholesterol-rich microdomain in cell membranes.
		Since 1972, it has been believed that, in cell membranes, phospholipids and membrane proteins are ubiquitously distributed according to a fluid mosaic model.
		The concept of lipid rafts has been related to the liquid-liquid immiscibility observed within model membranes.
	www.hallencyclopedia.com /Lipid_raft (268 words)

	Reasons To Believe: Facts For Faith Issue 10, 2002
		This model views the phospholipid bilayer as a two-dimensional fluid that serves as both a cellular barrier and as a solvent for integral membrane proteins.
		The fluid mosaic model allows the membrane proteins and lipids to freely diffuse laterally throughout the cell membrane.
		Singer and G. Nicolson, “The Fluid Mosaic Model of the Structure of Cell Membranes,” Science 175 (1972): 720-31.
	www.reasons.org /resources/fff/2002issue10 (16414 words)

	100 Concepts of Biology
		Membranes are not simply made of lipid molecules (the fluid mosaic model)
		The "fluid mosaic" model of the membrane states that the membrane is fluid-that is, that the molecules that make up the membrane are in constant motion rather than being fixed in space.
		The membrane is a mosaic-made up of lipids of various kinds, and of various proteins.
	mywebpages.comcast.net /biologycentury/pages/membrane1.html (324 words)

	Fluid Mosaic Model of Biological Membranes (Site not responding. Last check: 2007-11-01)
		The fluid mosaic model of lipid bilayer membranes, codified by Singer and Nicolson in 1972, describes the essential features of the biological membrane.
		It is a two-dimensional fluid, or liquid crystal, in which the hydrophobic integral components such as lipids and membrane proteins are constrained within the plane of the membrane, but are free to diffuse laterally.
		In the image shown here, two integral membrane proteins are imbedded in the membrane.
	www.tulane.edu /~biochem/faculty/facfigs/fluid_mosaic.htm (71 words)

	Cell Membranes
		The polar region is hydrophilic because of the positively charged variable group attached to the phosphate, whereas the nonpolar fatty acid tails are hydrophobic.
		The so-called "ping-pong" model suggests that the entry of a molecule triggers a shape change allowing entry to the opposite side of the membrane.
		Once the molecule is released the protein's shape reverts to the original or unoccupied state.
	home.earthlink.net /~dayvdanls/cell_membranes.htm (1371 words)

	Chapter 8 Study Guide (Site not responding. Last check: 2007-11-01)
		Describe the differnces between the Davson and Danielli model and the fluid mosaic model (proposed by Singer/Nicholson)of membrane structure.
		Describe the fluid properties of the cell membrane and explain how membrane fluidity is influenced by membrane composition.
		Using diagrams and accompanying explanations, describe the structure of the cell membrane (what molecules it's made up of and how they arranged) according to the fluid mosaic model of Singer and Nicholson.
	www.franklincollege.edu /bioweb/cell/cellch8.htm (1006 words)

	Biology 202: Membrane Structure & Function
		Fluid Mosaic Model (S.J. Singer) -- Lipid Bilayer with globular proteins embedded
		Lipids and Proteins are free to move about (diffuse) in the plane of the membrane and to rotate about an axis perpendicular to the membrane.
		Steroid lipids (Cholesterol) make bilayers less fluid but also inhibits transformation to solid state at low temperature.
	www.sci.sdsu.edu /classes/biology/bio202/TFrey/MembraneStructure.html (1280 words)

	fluid-mosaic model - General Practice Notebook
		The fluid-mosaic model, as proposed by Singer and Nicolson, is used to describe how the components of the plasma membrane are thought to interact.
		The lipid bilayer is proposed to be a dynamic fluid in which:
		Hence, the model is described as being a modified fluid-mosaic.
	www.gpnotebook.co.uk /simplepage.cfm?ID=1624244282 (927 words)

	Membrane Structure and Function (Site not responding. Last check: 2007-11-01)
		Note in the following that A is a hydrocarbon tail of a phospholipid, B is the hydrophilic head of a phosopholipid, C is one of the aqueous solutions surrounding the lipid bilayer, and that the big fl object represents an integral membrane protein:
		The model that describes the arrangement of these substances in and about lipid bilayers is called the fluid mosaic model
		two-dimensional fluid that in turn is made up mostly of phospholipids
	www.mansfield.ohio-state.edu /~sabedon/campbl08.htm (1165 words)

	3
		In the fluid state, rotation of phospholipid molecules around the long axis, flexing of hydrocarbon chains, and position exchange may all occur within the same bilayer half; generally there is no flip-flop from one layer to another
		As proposed in the fluid mosaic model, proteins are free to move in the lipid bilayer
		The experiment is thus a demonstration of the fluid mosaic model for membrane proteins
	lifesci.rutgers.edu /~fong/3.htm (3863 words)

	fluid mosaic model - OneLook Dictionary Search
		We found 9 dictionaries with English definitions that include the word fluid mosaic model:
		Tip: Click on the first link on a line below to go directly to a page where "fluid mosaic model" is defined.
		Fluid Mosaic Model : Biological Sciences Dictionary [home, info]
	www.onelook.com /?w=fluid+mosaic+model (136 words)

	Quia - The Fluid Mosaic Model of a Membrane
		Quia - The Fluid Mosaic Model of a Membrane
		What are the parts and characteristics that make up the membrane.....do you know?
		To learn how to make your own, just like this, click here.
	www.quia.com /jg/157726.html (52 words)

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