Chemistry of Life
... - cholesterol is a sterol because it contains a OH group. - cholesterol is a sterol because it contains a OH group. - cholesterol is a major constituent of cellular membranes and helps membrane maintain its rigidity. - cholesterol is needed for the synthesis of other important steroid hormones like ...
... - cholesterol is a sterol because it contains a OH group. - cholesterol is a sterol because it contains a OH group. - cholesterol is a major constituent of cellular membranes and helps membrane maintain its rigidity. - cholesterol is needed for the synthesis of other important steroid hormones like ...
lipid raft
... sphingolipids because of their long saturated chains Typical membrane has blob-like regions rich in cholesterol & sphingolipids surrounded by regions that are primarily phospholipids The mobility of the cholesterol-rich regions leads to the term lipid raft ...
... sphingolipids because of their long saturated chains Typical membrane has blob-like regions rich in cholesterol & sphingolipids surrounded by regions that are primarily phospholipids The mobility of the cholesterol-rich regions leads to the term lipid raft ...
Chapter 17 "Lipids" - 2012 Book Archive
... degree of unsaturation and number of carbon atoms in the constituent fatty acids. Triglycerides obtained from animal sources are usually solids, while those of plant origin are generally oils. Therefore, we commonly speak of animal fats and vegetable oils. No single formula can be written to represe ...
... degree of unsaturation and number of carbon atoms in the constituent fatty acids. Triglycerides obtained from animal sources are usually solids, while those of plant origin are generally oils. Therefore, we commonly speak of animal fats and vegetable oils. No single formula can be written to represe ...
PPT File
... Two groups originally defined: PGE (ether-soluble) PGF (phosphate buffer-soluble) Affect a wide range of cellular functions by regulating the synthesis of the intracellular messenger: 3’, 5’-cyclic AMP (cAMP). Stimulate contraction of the smooth muscle of the uterus. Affect blood flow to specific or ...
... Two groups originally defined: PGE (ether-soluble) PGF (phosphate buffer-soluble) Affect a wide range of cellular functions by regulating the synthesis of the intracellular messenger: 3’, 5’-cyclic AMP (cAMP). Stimulate contraction of the smooth muscle of the uterus. Affect blood flow to specific or ...
NSCC NTR150 Ch05 Fats (Lipids)
... • Travel through the lymphatic system • Transferred to the bloodstream Short- and medium-chain fatty acids are absorbed more quickly since they are not arranged into chylomicrons. ...
... • Travel through the lymphatic system • Transferred to the bloodstream Short- and medium-chain fatty acids are absorbed more quickly since they are not arranged into chylomicrons. ...
Untitled - Shodhganga
... mycosterols. This classification, however, is not rigid, since some sterols are obtained from more than one of these groups. Lipids may be regarded as organic substances relatively insoluble in water, soluble in organic solvents (alcohol, ether etc.), actually or potentially related to fatty acids a ...
... mycosterols. This classification, however, is not rigid, since some sterols are obtained from more than one of these groups. Lipids may be regarded as organic substances relatively insoluble in water, soluble in organic solvents (alcohol, ether etc.), actually or potentially related to fatty acids a ...
Lipids
... Triacylglycerol contained in chylomicrons is broken down primarily in the capillaries of skeletal muscle and adipose tissues, but also those of the heart, lung, kidney, and liver. Triacylglycerol in chylomicrons is degraded to free fatty acids and glycerol by lipoprotein lipase. This enzyme is synth ...
... Triacylglycerol contained in chylomicrons is broken down primarily in the capillaries of skeletal muscle and adipose tissues, but also those of the heart, lung, kidney, and liver. Triacylglycerol in chylomicrons is degraded to free fatty acids and glycerol by lipoprotein lipase. This enzyme is synth ...
Dietary Fat, Saturated Fat, Trans Fat and
... In food processing, polyunsaturated fats may be modified because unsaturated fats tend to go rancid. When oils have been hydrogenated, they become more solid. Margarine is an example of liquid polyunsaturated oil that is hydrogenated to become more solid. In the process of hydrogenation, hydrogens a ...
... In food processing, polyunsaturated fats may be modified because unsaturated fats tend to go rancid. When oils have been hydrogenated, they become more solid. Margarine is an example of liquid polyunsaturated oil that is hydrogenated to become more solid. In the process of hydrogenation, hydrogens a ...
Lecture 15
... the many bile ducts that penetrate the liver • The common bile duct in turn joins with the pancreatic duct to empty into the duodenum; If the sphincter of Oddi is closed, bile is prevented from draining into the intestine and instead flows into the gall bladder, where it is stored and concentrated • ...
... the many bile ducts that penetrate the liver • The common bile duct in turn joins with the pancreatic duct to empty into the duodenum; If the sphincter of Oddi is closed, bile is prevented from draining into the intestine and instead flows into the gall bladder, where it is stored and concentrated • ...
Chemistry of lipids Lipids are defined as a group of naturally
... 3. The mesenteric fat around organs like kidney provides padding and protect the internal organs. 4. Building materials. Breakdown products of fats can be utilized for building biologically active materials like cholesterol, which in turn can be utilized for synthesis of certain hormones. 5. Lipids ...
... 3. The mesenteric fat around organs like kidney provides padding and protect the internal organs. 4. Building materials. Breakdown products of fats can be utilized for building biologically active materials like cholesterol, which in turn can be utilized for synthesis of certain hormones. 5. Lipids ...
LIPIDS CHEMISTRY
... 3. Supply the essential fatty acids that cannot be synthesized by the body. 4. Supply the body with fat-soluble vitamins (A, D, E and K). 5. They are important constituents of the ...
... 3. Supply the essential fatty acids that cannot be synthesized by the body. 4. Supply the body with fat-soluble vitamins (A, D, E and K). 5. They are important constituents of the ...
Lehninger ch10
... in the form of triacylglycerols • Solid ones are called fats • Liquid ones are called oils • The primary storage form of lipids (body fat) • Less soluble in water than fatty acids due to the lack of charged carboxylate group • Less dense than water: fats and oils float ...
... in the form of triacylglycerols • Solid ones are called fats • Liquid ones are called oils • The primary storage form of lipids (body fat) • Less soluble in water than fatty acids due to the lack of charged carboxylate group • Less dense than water: fats and oils float ...
Dietary Fat and Cholesterol - OSU Fact Sheets
... acids. Completely saturated fats and completely polyunsaturated fats are very rare in nature. Whether a fat is solid or liquid depends of the relative amounts of the different types of fatty acids and the temperature. Unsaturated fats tend to be liquid at room temperature and contain more unsaturate ...
... acids. Completely saturated fats and completely polyunsaturated fats are very rare in nature. Whether a fat is solid or liquid depends of the relative amounts of the different types of fatty acids and the temperature. Unsaturated fats tend to be liquid at room temperature and contain more unsaturate ...
Lipids
... - In the stomach, gastric lipase joins in, and the stomach’s churning and contractions keep the fat dispersed. After two to four hours in the stomach, about 30 percent of dietary triglycerides have been broken down to diglycerides and free fatty acids. - Fat in the small intestine stimulates the rel ...
... - In the stomach, gastric lipase joins in, and the stomach’s churning and contractions keep the fat dispersed. After two to four hours in the stomach, about 30 percent of dietary triglycerides have been broken down to diglycerides and free fatty acids. - Fat in the small intestine stimulates the rel ...
Lipids - upol.cz
... • Recent decreases in the trans content of the diet have been observed, presumably due to modifications of commercially available fats or changes in consumer choices. • Today, most margarines in the European market have a lower content of trans fatty acids than 5 to 10 years ago and in most cases th ...
... • Recent decreases in the trans content of the diet have been observed, presumably due to modifications of commercially available fats or changes in consumer choices. • Today, most margarines in the European market have a lower content of trans fatty acids than 5 to 10 years ago and in most cases th ...
LIPIDS
... Once these lipoproteins leave the cell, they become CHYLOMICRONS and enter the lymph system MCTs, short-chain fatty acids and glycerol are absorbed directly into bloodstream. They do not enter the lymph system. Cholesterol and other sterols are poorly absorbed. Overall, about 50% of dietary choleste ...
... Once these lipoproteins leave the cell, they become CHYLOMICRONS and enter the lymph system MCTs, short-chain fatty acids and glycerol are absorbed directly into bloodstream. They do not enter the lymph system. Cholesterol and other sterols are poorly absorbed. Overall, about 50% of dietary choleste ...
Chapter 18_CHEM 131
... • They fit into bilayers more loosely than saturated fatty acids. • This increases flexibility or fluidity of the membrane. • Proteins float in the lipid bilayer like icebergs in the sea, some extend completely through the bilayer. ...
... • They fit into bilayers more loosely than saturated fatty acids. • This increases flexibility or fluidity of the membrane. • Proteins float in the lipid bilayer like icebergs in the sea, some extend completely through the bilayer. ...
LIPIDS
... organs of some plants. Lipid content in such storage tissues can rise to 15%–20% or higher and so serve as a commercial source for isolation of triacylglycerols . Lipids are broadly defined as any fat-soluble (lipophilic), naturally-occurring molecules, such as fats, oils, waxes, cholesterol, steroi ...
... organs of some plants. Lipid content in such storage tissues can rise to 15%–20% or higher and so serve as a commercial source for isolation of triacylglycerols . Lipids are broadly defined as any fat-soluble (lipophilic), naturally-occurring molecules, such as fats, oils, waxes, cholesterol, steroi ...
Lipids
... are a main component in every living cell. They include the following 3 categories: – Triglycerides – largest class of lipids. They include nearly all of the fats and oils people typically eat. (of the lipids 95% are fats and oils) – Phospholipids - these lipids have a structure that enables them to ...
... are a main component in every living cell. They include the following 3 categories: – Triglycerides – largest class of lipids. They include nearly all of the fats and oils people typically eat. (of the lipids 95% are fats and oils) – Phospholipids - these lipids have a structure that enables them to ...
Fatty Acids
... sheath and cell membrane of RBCs. They act as cell membrane receptors for hormones and external stimuli also they provide recognition properties. ...
... sheath and cell membrane of RBCs. They act as cell membrane receptors for hormones and external stimuli also they provide recognition properties. ...
Glycerol + Fatty acids
... or both “down,” such that both are on the same side of the molecule ● In trans bonds, the two pieces of the molecule are on opposite sides of the double bond, that is, one “up” and one “down” across from each other ● Naturally-occurring unsaturated vegetable oils have almost all cis bonds, but using ...
... or both “down,” such that both are on the same side of the molecule ● In trans bonds, the two pieces of the molecule are on opposite sides of the double bond, that is, one “up” and one “down” across from each other ● Naturally-occurring unsaturated vegetable oils have almost all cis bonds, but using ...
LIPID OF BIOLOGICAL IMPORTANCE
... sheath and cell membrane of RBCs. They act as cell membrane receptors for hormones and external stimuli also they provide recognition properties. ...
... sheath and cell membrane of RBCs. They act as cell membrane receptors for hormones and external stimuli also they provide recognition properties. ...
fat facts
... like an emulsifier to aid the digestion of dietary fat, but the bad cholesterol recycles the cholesterol back to the blood circulation. What makes the good cholesterol high density and the bad low density? Mom: The ultimate structural difference between the good and bad cholesterols is due to the pa ...
... like an emulsifier to aid the digestion of dietary fat, but the bad cholesterol recycles the cholesterol back to the blood circulation. What makes the good cholesterol high density and the bad low density? Mom: The ultimate structural difference between the good and bad cholesterols is due to the pa ...
High-density lipoprotein
High-density lipoprotein (HDL) is one of the five major groups of lipoproteins. Lipoproteins are complex particles composed of multiple proteins which transport all fat molecules (lipids) around the body within the water outside cells. They are typically composed of 80-100 proteins/particle (organized by one, two or three ApoA; more as the particles enlarge picking up and carrying more fat molecules) and transporting none to hundreds of fat molecules/particle. Unlike the larger lipoprotein particles which deliver fat molecules to cells, HDL particles remove fat molecules from cells which want to export fat molecules. The fats carried include cholesterol, phospholipids, and triglycerides; amounts of each quite variable.Lipoproteins, in order of molecular size, largest to smallest, are chylomicrons, very low-density lipoprotein (VLDL), intermediate-density lipoprotein (IDL), low-density lipoprotein (LDL), and HDL. Lipoprotein molecules (all particles far smaller than human cells), enable the transportation of all lipids, such as cholesterol, phospholipids, and triglycerides, within the water around cells (extracellular fluid), including the bloodstream. For perspective on particle size; see: Cell Size and Scale,.. HDL particles, unlike the larger particles, transfer fats away from cells, artery walls and tissues (around the body, body wide) through the bloodstream, back to both (a) LDL particles and (b) back to the liver for other disposition.Increasing concentrations of HDL particles are strongly associated with decreasing accumulation of atherosclerosis within the walls of arteries[4] over weeks, years, decades. This is important because atherosclerosis, eventually, results in sudden plaque ruptures triggering clots within the artery opening, narrowing/closing the opening(s), i.e. cardiovascular disease, stroke(s) and other vascular disease complications body wide.HDL particles (though vastly different from just cholesterol and other fat molecules per-se) are sometimes referred to as good cholesterol because they can transport fat molecules (including cholesterol, triglycerides, etc.) out of artery walls, reduce macrophage accumulation, and thus help prevent, even regress atherosclerosis over weeks, years, decades, thereby helping prevent cardiovascular disease, stroke(s) and other vascular disease complications body wide. In contrast, LDL particles (also far different from cholesterol per-se) are often called bad cholesterol or unhealthy cholesterol, because they deliver fat molecules to macrophages in the wall of arteries.[5]