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3.1.3 Lipids SPECIFICATION ‒ Triglycerides and phospholipids are two groups of lipid. ‒ Triglycerides are formed by the condensation of one molecule of glycerol and three molecules of fatty acid. ‒ A condensation reaction between glycerol and a fatty acid (RCOOH) forms an ester bond. ‒ The R-group of a fatty acid may be saturated or ...
In this chapter, we’ll first consider how macromolecules are built. Then we’ll examine the structure and function of all four classes of large biological molecules: carbohydrates, lipids, proteins, and nucleic acids. The scientist in the foreground is using 3-D glasses to help her visualize the structure of the protein displayed on her screen.
Lipids are a heterogeneous group of organic compounds that are insoluble in water and soluble in non-polar organic solvents. They naturally occur in most plants, animals, microorganisms and are used as cell membrane components, energy storage molecules, insulation, and hormones.
Lipids have distinct nonpolar and polar part and self-associate to form droplets, micelles and bilayers. Let’s understand this, then tackle complicated molecules like protein and …
19 paź 2022 · Define lipids and recognize the different classes. Fats and oils, found in many of the foods we eat, belong to a class of biomolecules known as lipids.
21 mar 2024 · Lipids are a diverse group of molecules that all share the characteristic that at least a portion of them is hydrophobic. Lipids play many roles in cells, including serving as energy storage (fats/oils), constituents of membranes (glycerophospholipids, sphingolipids, cholesterol), hormones (steroids), vitamins (fat soluble), oxygen/ electron ...
Classification of Lipids Lipids that are ester or amides of fatty acids: Waxes – are carboxylic acid esters where both R groups are long straight hydrocarbon chain. Performs external protective functions. Triacylglycerol – are carboxylic acid triesters of glycerols. They are a major source of biochemical energy.
