what are the 2 main functions of lipids?
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Lipids perform three primary biological functions within the body: they serve as structural components of cell membranes, function as energy storehouses, and function as important signaling molecules.
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['The principal components of the plasma membrane are lipids ( phospholipids and cholesterol), proteins, and carbohydrates.', 'The plasma membrane protects intracellular components from the extracellular environment.']
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Lipids are a class of macromolecules that are nonpolar and hydrophobic in nature. Major types include fats and oils, waxes, phospholipids, and steroids.
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A phospholipid is a type of lipid molecule that is the main component of the cell membrane. Lipids are molecules that include fats, waxes, and some vitamins, among others. Each phospholipid is made up of two fatty acids, a phosphate group, and a glycerol molecule.
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Cell membranes are composed primarily of fatty-acid-based lipids and proteins. Membrane lipids are principally of two types, phospholipids and sterols (generally cholesterol).
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They are one of the main molecules needed to maintain proper health of human body. Out of all the important functions it performs, the most crucial one is building the cellular membrane. The other functions it performs include insulation, energy storage, protection and cellular communication.
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['Lipids may be either liquids or non-crystalline solids at room temperature.', 'Pure fats and oils are colorless, odorless, and tasteless.', 'They are energy-rich organic molecules.', 'Insoluble in water.', 'Soluble in organic solvents like alcohol, chloroform, acetone, benzene, etc.', 'No ionic charges.']
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The three major classes of membrane lipids are phospholipids, glycolipids, and cholesterol. ... By forming a double layer with the polar ends pointing outwards and the nonpolar ends pointing inwards membrane lipids can form a 'lipid bilayer' which keeps the watery interior of the cell separate from the watery exterior.
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HDL along with LDL are used to measure the risk of heart disease. The main function of LDL is to carry cholesterol to different parts of the body. Since it takes cholesterol to different parts of the body, it is more likely to build up on arterial walls. This leads to an increased risk of heart disease.
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Phospholipids are a class of lipids that are a major component of all cell membranes. They form lipid bilayers. The structure of the phospholipid molecule generally consists of two hydrophobic fatty acid "tails" and a hydrophilic "head" consisting of a phosphate group.
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Lipids function in energy storage, cell membrane structure, protection of living surfaces and chemical signaling. ... The major types of lipids are fats, oils, waxes, steroids and phospholipids, which make up cell membranes.
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['Fats and oils. A fat molecule consists of two kinds of parts: a glycerol backbone and three fatty acid tails. ... ', 'Saturated and unsaturated fatty acids. As shown in the example above, the three fatty acid tails of a triglyceride need not be identical to each other. ... ', 'Waxes. ... ', 'Phospholipids.']
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A lysosome has three main functions: the breakdown/digestion of macromolecules (carbohydrates, lipids, proteins, and nucleic acids), cell membrane repairs, and responses against foreign substances such as bacteria, viruses and other antigens.
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Functions of cholesterol in the body Cholesterol is essential for making the cell membrane and cell structures and is vital for synthesis of hormones, vitamin D and other substances. Cell membrane synthesis – Cholesterol helps to regulate membrane fluidity over the range of physiological temperatures.
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They can be found in many parts of a human: cell membranes, cholesterol, blood cells, and in the brain, to name a few ways the body uses them. Lipids are important for cell membrane structure, regulating metabolism and reproduction, the stress response, brain function, and nutrition.
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The two main functions of chloroplasts are to produce food (glucose) during photosynthesis, and to store food energy.
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The functions of lipids include storing energy, signaling, and acting as structural components of cell membranes.