Lipid

smoking cigarettes but it still contains a high amount of nicotine. Nicotine affects lipid metabolism. Nicotine lowers concentrations of high-density lipoprotein (HDL) cholesterol, which provide protection against development of atherosclerosis. Increased low-density lipoprotein (LDL) leading to accumulation of lipids in arteries. Atherosclerosis is a specific form of arteriosclerosis; is the concentration of lipids…

starch, trypsin digests protein, and lipase digests fat. 5. Describe the location(s) in the digestion tract where each of the major types of nutrients (Carbohydrates, Lipids, and Proteins) are broken down.…

Lesson 5: Structures, Functions and Roles of Biological Molecules and Enzyme Activity in Metabolism Biological Molecules/Macromolecules Plants produce their own food through photosynthesis. They manufacture mainly carbohydrates (glucose) as a source of food of many higher organisms in the food chain. It is one of the many biological molecules present in plants and needed by animals. Biological molecules are macromolecules composed of many monomers (polymer) connected through a covalent bond…

demonstrated to have a healing value for mitigating headaches (Bic et al., 1999). High fat diets may be the first stage to causing platelet aggregation thus prompting migraines (Bic et al., 1999). The main objective of this study was to assess the levels of lipid intake in a diet and observe a correlation, if any, between a low fat diet intake and the severity of migraines. This study was aimed to decrease dietary fat intake in subjects suffering from migraines to see if it will decrease the…

Molecular oxygen is reduced to superoxide anion (O−2·) that is converted to other forms of reactive oxygen species. ROS reacts with lipid, protein and other cellular components to cause damage to cell membrane and mitochondria of the heart muscle fibers [1] These free radicals may then cause injury to the heart, an organ that has a relatively low level of antioxidant enzymes such as…

through fermented grains. The use of lipids in the mediterranean diet are that of monounsaturated fats and polyphenols. The use of monounsaturated fats is to replace and be a healthy alternative to that of trans fats and polyunsaturated fats which are found in most processed foods. The monounsaturated fats create a decreased risk for breast cancer, reduced cholesterol levels, lower risk of heart disease and stroke, weight loss, and reduced belly fat. The lipids in this are natural and usually…

alpha-helix under alkaline pH, high salt, high acid, or in high peptide concentration solutions. During the tetramer/monomeric alpha-helix rearrangement melittin can integrate itself into a cell’s lipid membrane. (Godballe, 172-183) Mechanism of Melittin-Bilayer Interaction The integration of melittin into a cell’s lipid membrane is what causes the rupturing of red blood cells during a bee sting. Melittin employs this conformational change and proceeds to destroy the cells around the site of…

difference between HDL and LDL? HDL, or “good cholesterol”, is a lipoprotein that carries lipids away from arterial tissue and to the liver, where it is broken down and eventually removed from the body. It is considered good because it aids in removing excess cholesterol from stored up arterial plaque. Meanwhile, LDL, or “bad cholesterol”, pretty much does the opposite of what HDL does. The lipoprotein transports lipids to arterial tissues. If LDL levels are high or if the lipoproteins are…

Impact of feeding Glycyrrhiza glabra water extract on the plasma lipid profile The levels of plasma triacylglycerols (TAG) and total cholesterol (TC) in rats during different periods of the experiment are shown in table 2. A significant decrease in both TAG and TC levels was observed in animals administered Glycyrrhiza glabra water extract. After 60 days, the Glycyrrhiza glabra water extract -supplemented diets significantly decreased plasma TAG (74 , 82, and 120 vs. 188) as calculated in mg/dl…

studded with ribosomes. The building materials are either build on it of in it. This is also known as the cell’s membrane factory. Pancreas cells are abundant with rough ER. The smooth ER doesn’t work with proteins. It works with lipids instead. The smooth ER is a key factor in lipid metabolism, or cholesterol and fat synthesis and breakdown. It’s also a key factor in detoxification of drugs and pesticides. Liver cells are abundant with smooth ER. Body cells need smooth ER for breakdown of…