Definition and types of fats


Lipids are important components of plant cells, animals and membranes of microbial cells. They are slightly soluble in water and soluble in organic solvents, such as chloroform or acetone. There are two main groups of lipids, including molecules with an open and closed chain. Lipid compounds with an open chain are as follows:

  • fatty acid;
  • triacylglycerides;
  • sphingolipids;
  • phosphoacylglycerides;
  • glycolipids.

Lipid compounds with a closed chain are steroids. The main thing in this group is cholesterol.

Fats are an important source of energy that meets the daily need for energy, and also provides it in cases where:

  • there are no other sources of energy, such as fasting;
  • cells are not able to utilize energy reserves, for example, in diabetes mellitus;

The main functions of food fats

  • Energy source
  • Source of essential fatty acids
  • Assistance in the absorption and transport of fat-soluble vitamins
  • Protection of the main organs from damage
  • Structural component of cells

Fat reserves also help maintain body temperature and protect the body from injuries. In addition, fat promotes the delivery and assimilation of fat-soluble vitamins and influences the structure of food. High-energy density of fats increases the value of food in the sense of saturation of the body.

Found an error? Select it and press Ctrl + Enter.

Medical expert editor

Portnov Alexey Alexandrovich

Education: Kiev National Medical University. A.A. Bogomolets, Specialty - "General Medicine"

Other doctors

Other articles on the topic

Exercises for morning exercises for children
Given the spread of excess weight in modern children against a background of malnutrition and lack of motor activity, the question of morning exercises is very relevant.
Eating certain foods requires considerable expenditure of calories.

The life of an athlete is a frequent debilitating exercise, physical activity, early deterioration of the body, accidental injuries and, as a consequence, the emergence of occupational diseases.

The latest research relating Definition and types of fats

A huge amount of research has allowed to prove that physical exercises improve the quality of thinking, especially in people after 40 years.

Share on social networks

You are reporting a typo in the following text:
Simply click the "Send typo report" button to complete the report. You can also include a comment.