Utah Esthetics Written State Practice Exam

What substance is formed by the decomposition of fat and oils?

1. Glycerin

2. Fatty acids

3. Triglycerides

4. Cholesterol

The correct answer is: Glycerin

The formation of substances from the decomposition of fats and oils primarily leads to the production of fatty acids. When triglycerides, which are the main constituents of body fat in humans and animals, undergo decomposition, they break down into glycerol and fatty acids. This is essential in various metabolic and chemical processes in the body, as fatty acids can be utilized for energy or further processes. Glycerin, while a component that results from the breakdown of triglycerides, is not the primary substance produced. It is the alcohol component that combines with fatty acids to form triglycerides in the first place. Triglycerides themselves do not form from the decomposition; rather, they are the original structures that decompose. Cholesterol, a different type of lipid, does not result from the decomposition of fats and oils but rather is synthesized in the liver and found in animal products. Understanding the specific breakdown products of fats is crucial for estheticians in the context of skin treatment and product formulations.