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Word Count: 472
Lipids The subject I will cover is lipids I will tell you about the description of its organic compound I will tell you where it is found I will tell you what the uses are in plants and animals I will also tell you about its chemical structure and give examples of types of these compounds such as cholesterol The organic compound of lipids have many similarities They are almost always greasy fatty oily or waxy They do not dissolve in water but they do in other organic solvents This is like if you get grease on your hands it is hard to wash of because it seems to repel the water You can find lipids in many places They are usually in fatty foods like butter salad dressing and cooking oils They can also be found inside of animals as the form of fat Lipids are always found in fat because when you get a build up of lipids it forms fat Lipids have many uses amongst plants and animals The main use of these are for energy and storing energy When they store energy they make triglycerides also known as fat There are also many other uses such as insulation and protection They are also used in making cell membranes They make it so that the cell can maintain its shape by keeping water and water-soluble compounds from passing through it The lipids that are waxy are usually used to make protective coatings on the surface of plants and animals Since a lipid is an organic compound it contains carbon They also contain hydrogen and oxygen but in some very complex chains there is also phosphorus andor nitrogen Lipids are made by the dehydration synthesis of glycerol and fatty acids This is when three molecules of fatty acids combine with one molecule of glycerol by taking water out of the solution Lipids are
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