What is phosphatidycholine?
401959
It is nothing more than plain old Lecithin.  I'm sure if you bought lecithin instead of phosphatidylcholine it would prabably be cheaper.  It helps your body digest fats, which is good for your brain, liver, skin, and heart, it helps lower cholesterol, MAY help you lose weight, helps remove plaque in your arteries, is a blood thinner, helps other drugs/supplements/foods get into your system faster.\n\nSources of lecithin include egg yolks (best source), soybeans, brewers yeast, legumes, fish and wheatgerm, \nliver, B-complex vitamins, cauliflower, milk, cheese, peanuts, spinach, lettuce, wheat bran, oats, oat bran, grape juice, cabbage, nuts, basil, chili powder, curry powder, garlic powder, mustard seed, parsley, chicken, turkey, bacon, pork, beef, tomato paste, shrimp, cod, orange roughy, salmon, tilapia, navy beans, mutton, veal, muffins, AND chocolate!
504129
Liposomes are composed of a lipid bilayer separating an aqueous internal compartment from the bulk aqueous phase. Micelles are closed lipid monolayers with a fatty acid core and polar surface, or polar core with fatty acids on the surface (inverted micelle).
762656
D - definitely all of these:\n\nA - TRUE: liposomes are shaped like a donut, in which the membrane is a lipid bilayer\nB - TRUE: by definition, liposomes contain an aqueous core; if the core is empty, they are called micelles\nC - TRUE: The heads are hydrophilic, the tails are hydrophobic.
16275
Lipase.\n\n\nlipase (lī'pās) , any enzyme capable of degrading lipid molecules. The bulk of dietary lipids are a class called triacylglycerols and are attacked by lipases to yield simple fatty acids and glycerol, molecules which can permeate the membranes of the stomach and small intestine for use by the body. Gastric lipase, secreted by the stomach lining, has a pH value for optimal activity around neutrality and would appear, therefore, to be essentially inactive in the strongly acid environment of the stomach. It is suggested that this enzyme is more important for infant digestion since the gastric pH in infancy is much less acid than later in life. Most lipid digestion in the adult occurs in the upper loop of the small intestine and is accomplished by a lipase secreted by the pancreas. Phospholipases are the enzymes that degrade phospholipids.
1098027
Alkanes-such as methane (CH4) can pass through the lipid bilayer.
751385
It's called caduet.  It's a combination of:\n\nAmlopidine:  calcium channel blocker for hypertension.\n-look out for dizzyness, heart palpitation-generally, a very well tolerated blood pressure med\n\nAtorvastatin: To lower high cholesterol.\n-report immediately any muscle soreness, or cramping\n\n\nhttp://www.caduet.com/
778955
The cell membrane is a lipid bilayer made from phospholipids.  As a lipid, it is permeable to other lipids (e.g. steroid hormones) but not to polar molecules (e.g. potassium or glucose).  Polar molecules require various types of membrane proteins (e.g. potassium channels) or endocytosis (glucose) for absorption into the cell.  \n\nHope this is helpful for you.  Best wishes and good luck.
107850
I forgot the names, but the general idea is that animal fat is much more complex than vegetable fat.  That means that animal fat is much harder to break down and for the most part, your body makes enough of this animal fat already.  When it gets additional it all goes into storage, for example; when you take in cholesterol your body makes most of what it needs for this fat and so the excess gets stuck to the arterial walls.\n\nHDL/LDL high density lipoproteins and low density lipoproteins.  HDLs usually come from animal fat while LDLs usually come from vegetable fat. When the LDLs go through the system they can actually help eliminate excess fats and help recycle them or deliver them for excretion.  Some examples of these LDLs are omega 3 and omega 6 fatty acids which will actually help you lose fat.\n\nFor most diets, the more animal fat you cut out, the healthier you're gonna be.\n\nI liked this question because it helped me realize how much I've forgotten from my nutrition classes.
1090728
The proteins and phospholipids float freely in the bilayer.\n\nImagine if you filled a bathtub with water and then dumped a box of those styrofoam peanuts into the tub, pretend these are phospholipids. If you spread them out evenly you'd completely cover the surface of the water. Now take your rubber ducky and pretend it's a protein. You could move the ducky (protein) from one point to the other and the phospholipids will shift out of the way and close any gaps. It works this way because it allows the proteins in membrane to move throughout the surface of the membrane and go where they are needed.
808217
Fats are organic compounds that are made up of carbon, hydrogen, and oxygen; they are the most concentrated source of energy in foods. Fats belong to a group of substances called lipids. Fats come in liquid or solid form. All fats are combinations of saturated and unsaturated fatty acids. Fats can be called very saturated or very unsaturated depending on their proportions.\nCholesterol is a sterol (a combination steroid and alcohol) and a lipid found in the cell membranes of all body tissues, and transported in the blood plasma of all animals. It is a soft, waxy substance found in all parts of the body. This includes the nervous system, skin, muscle, liver, intestines, and heart. It is made by the body and also obtained from animal products in the diet.\nPlease see the webpages for more details on Fat and Cholesterol.
66727
Cholesterol and triglycerides are two forms of lipid, or fat. Both cholesterol and triglycerides are necessary for life itself. Cholesterol is necessary, among other things, for building cell membranes and for making several essential hormones. Triglycerides, which are chains of high-energy fatty acids, provide much of the energy needed for cells to function.
837454
Cholesterol is an important component of cell membranes embedded in the hydrophobic areas of the inner region. It is required to control the fluidity of cell membranes. On the one hand, cholesterol breaks up close packing of the phospholipid tails and makes the membrane more fluid. On the other hand, the effect of cholesterol is to reduce leakage of water and ions through the lipid bilayer, probably by reducing the sideways motion of the lipid molecules. Thus, cholesterol regulates the fluidity of the plasma membrane, preventing it from becoming either too rigid or too fluid.
473061
It is suspected to be a phospholipid, but hasnt been determined yet.  Nor has it been determined if this effect is real, as far as I know
19754
Cerebrosides are glycosphingolipids which are important components in animal muscle and nerve cell membranes. They consist of a ceramide with a single sugar residue at the 1-hydroxyl moiety. The sugar residue can be either glucose or galactose; the two major types are therefore called glucocerebrosides and galactocerebrosides.
695871
it has phospholipids that have two polls one hydrophobic and the other hydrophylic. That's how it connects the lipids with H2O.\nHope this helps :)
465257
Lipitor, for high cholesterol.
247527
Fat is one of the three main classes of food. It has many meanings, and the only good description is in technical terms. There are triglycerides, fatty acids, sterols, but "fat" may also refer to adipose tissue.\n\nThe main constituents of both animal fat and vegetable oils are triglycerides, that is glycerin molecules with three fatty acids attached. Nutritional fat is a mixture of many types of triglycerides, which differ in the length of their fatty acid chains, as well as the number and position of single and double bonds between their carbon atoms. Fat molecules contain only oxygen, hydrogen, and carbon atoms.\n\nVitamins A, D, E, and K are fat-soluble meaning they can only be digested, absorbed, and transported in conjunction with fats. Fats are sources of essential fatty acids, an important dietary requirement.\n\nFats play a vital role in maintaining healthy skin and hair, insulating body organs against shock, maintaining body temperature, and promoting healthy cell function. They also serve as energy stores for the body. In food, there are two types of fats: saturated and unsaturated. Saturated fat is a sort of a straight chain of carbon connected or bonded with 2 molecules of hydrogen. At the very beginning of this chain is a molecule of oxygen and a molecule of hydroxide. Unsaturated fat is the same thing with one major exception; some of those carbon atoms are not bonded with two hydrogen atoms so it becomes a very "fluid" state. Fats are broken down in the body to release glycerol and free fatty acids. The glycerol can be converted to glucose by the liver and thus used as a source of energy. The fatty acids are a good source of energy for many tissues, especially heart and skeletal muscle.\n\nAdipose tissue\n \nAdipose, or fatty tissue is the human body's means of storing metabolic energy over extended periods of time. Depending on current physiological conditions, adipocytes store fat derived from the diet and liver metabolism or degrades stored fat to supply fatty acids and glycerol to the circulation. These metabolic activities are regulated by several hormones (i.e., insulin, glucagon and epinephrine). The location of the tissue determines its metabolic profile: "Visceral fat" (around the abdomen) is prone to lead to insulin resistance, while "peripheral fat" (around the limbs) is much more harmless.\n\nMetabolism\n \nThe metabolism of lipids is a closely regulated system in virtually all lifeforms. It is affected by a variety of enzymes and, in higher organisms, regulated by hormones. Research is ongoing on the relative influence of various hormonal regulators on the anabolism (production) and catabolism (breakdown, also termed lipolysis) of fatty molecules.\n\nA subject of particularly close study is cholesterol, levels and types of which are influenced by the fatty acid metabolism and is known for its role in development of nerve cells atherosclerosis. Thus the suggesting that fat people are more sensitive to pain, particulairly in their abdominal region.\n\nAdipose tissue in detail. \n\nAdipose tissue is an anatomical term for loose connective tissue composed of adipocytes. Its main role is to store energy in the form of fat, although it also cushions and insulates the body. It has an important endocrine function in producing recently-discovered hormones such as leptin, resistin and TNFα.\n\nAnatomical features\n\nAdipose tissue is primarily located beneath the skin, but is also found around internal organs. In the skin, it accumulates in the deepest level, the subcutaneous layer, providing insulation from heat and cold. Around organs, it provides protective padding. It also functions as a reserve of nutrients.\n\nIn a severely obese person, excess adipose tissue hanging downward from the abdomen is referred to as a panniculus (or pannus). A panniculus complicates surgery of the morbidly obese, and may remain as a literal "apron of skin" if a severely