8. are phospholipids that are used to make bile?
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micelles are carriers made up of bile and phospholipids that can trap monoglycerides and fatty acids and transport digested fats from food to the enterocytes. The gallbladder releases bile into the small intestine. lecithins are phospholipids that are used to make bile.
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Phospholipids are not essential nutrients because the body can synthesize them from other organic molecules and phosphate. Essential nutrients are...
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Due to their amphiphilic nature, phospholipids are often used as emulsifiers. Being easily oxidized due to the presence of unsaturated fatty acids, phospholipids also exhibit antioxidative activities. Phospholipids are beneficial for human health. They are currently produced in the form of lecithin.
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Phospholipids are ubiquitous in nature and are essential for the lipid bilayer of cell membranes. Their structural and function- al properties are pivotal for the survival of the cell. Although phospholipids are present in almost all foods, egg, soybeans, milk, and other dairy products are especially good sources.
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Phospholipids Form Membranes Phospholipids provide barriers in cellular membranes to protect the cell, and they make barriers for the organelles within those cells. Phospholipids work to provide pathways for various substances across membranes.
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Phospholipids can be broken down in the cell and used for energy. They can also be split into smaller molecules called chemokines, which regulate a variety of activities in the cell such as production of certain proteins and migration of cells to different areas of the body.
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Phospholipids are soluble in both water and oil (amphiphilic) because the hydrocarbon tails of two fatty acids are still hydrophobic, but the phosphate group end is hydrophilic. Phospholipids are the major component of cell membrane to form lipid bilayers.
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Phospholipids are like fats but they have two fatty acids and a phosphate group joined to glycerol. The fatty acid tails are hydrophobic but the phosphate part is hydrophilic. This is an important feature of these molecules.
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Bile. The primary digestive function of bile is to aid in the dispersion and digestion of fat in the lumen of the small intestine. Bile is formed initially in the hepatocyte (liver cell), and the rate of formation is dependent primarily on the rate at which bile acids are secreted into the bile channels, or canaliculi.
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The secretion of bile can be considered to occur in two stages: Initially, hepatocytes secrete bile into canaliculi, from which it flows into bile ducts. This hepatic bile contains large quantities of bile acids, cholesterol and other organic molecules.
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Bile acids are synthesized from cholesterol in the liver through two pathways: the classic pathway and the alternative pathway. In human liver, bile acid synthesis mainly produces two primary bile acids, cholic acid (CA), and chenodeoxycholic ...
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Phospholipids and the Lipid Bilayer In phospholipids, the two fatty acids are hydrophobic, or insoluble in water. But the phosphate group is hydrophilic, or soluble in water. When phospholipids are mixed with water, they spontaneously rearrange themselves to form the lowest free-energy configuration.
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Phospholipids can act as emulsifiers, enabling oils to form a colloid with water. Phospholipids are one of the components of lecithin which is found in egg-yolks, as well as being extracted from soybeans, and is used as a food additive in many products, and can be purchased as a dietary supplement.
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Bile, Soap, and detergents act as emulsifiers. Emulsifiers help to solubilize fats and oil in water. All are amphipathic molecules containing a hydrophilic polar heads and hydrophobic non-polar tails. ... In soaps and detergents, emulsification helps to remove lipids from clothes and utensils.
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Bile is a mixture of water, bile salts, cholesterol, and the pigment bilirubin. Hepatocytes in the liver produce bile, which then passes through the bile ducts to be stored in the gallbladder. ... Kupffer cells in the liver catch and destroy old, worn out red blood cells and pass their components on to hepatocytes.
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Bile acids are conjugated with taurine or glycine residues to give anions called bile salts. Primary bile acids are those synthesized by the liver. Secondary bile acids result from bacterial actions in the colon.
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A Phospholipid Bilayer The plasma membrane is composed mainly of phospholipids, which consist of fatty acids and alcohol. The phospholipids in the plasma membrane are arranged in two layers, called a phospholipid bilayer. As shown in the Figure below, each phospholipid molecule has a head and two tails.