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Lipid metabolism involves the synthesis of lipids or by another name involves Lipogenesis. It involves fatty acid oxidization to create energy, in fact, these lipds are the body's reserve supply of energy. In human beings the cells make lipids. Lipid metabolism involves the hydrolysis of the lipid in the cytoplasm to produce glycerol and fatty acids. Fatty acids undergo synthesis from carbohydrates and sometimes from proteins. The two major blood lipids are cholesterol and triglycerides.
Carbohydrate metabolism starts with small intestine digetsion. Monosaccharides undergo absorption into the bloodstream. Discussions of carbohydrate metabolism concentrate on the synthesis and usage of glucose. In the liver and muscles, nearly all of the glucose changes into glycogen by a process called glycogenesis (anabolism).
If there is an immediate requirement for glucose upon entering the cells to supply energy, it starts the metabolic process glycoysis (catabolism). Carbohydrates break down into the monosaccharide glucose. This provides energy for the body's cells and tissues.
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