This lesson will explain the structure of lipids as well as discuss their function in our bodies.

See More
Human Biology

No bones about it.
Our Human Biology course is only $329.

Sophia's online courses not only save you money, but credits are also eligible for transfer to over 2,000 colleges and universities.*


En esta lección vamos a hablar de la estructura, la función y el papel de los lípidos en el cuerpo.


(0:00-0:53) Characteristics of Lipids

(0:54-1:35) Fats

(1:36-2:10) Saturated Fats

(2:11-6:16) Unsaturated Fats

(6:17-7:01) Triglycerides

(7:02-8:46) Phospholipids

(8:47-9:47) Sterols


Notes on "Lipids"


  • Lipid

    An organic molecule made up of glycerol and fatty acids, which is non-polar and does not dissolve easily in water

  • Nonpolar

    Does not dissolve easily in water

  • Fat

    A lipid made of a glycerol molecule and a fatty acid side chain

  • ​Saturated Fat

    A type of fat which does not have double bonds in its side chain

  • ​Unsaturated Fat

    ​A type of fat which has double bonds in its side chain

  • Trans Fat

    ​A type of unsaturated fat which is unhealthy and may lead to health problems

  • Triglyceride

    ​A type of lipid which is made up of a glycerol molecule and three fatty acid side chains

  • Phospholipid

    A type of lipid made up of a hydrophilic head and hydrophobic tail, and is found in cell membranes

  • ​Sterol

    ​A type of lipid containing only a glycerol molecule