Steroids are lipids that function as signaling molecules

Lipids  are very diverse in both their respective structures and functions. These diverse compounds that make up the lipid family are so grouped because they are insoluble in water. They are also soluble in other organic solvents such as ether, acetone, and other lipids. Lipids serve a variety of important functions in living organisms. They act as chemical messengers, serve as valuable energy sources, provide insulation, and are the main components of membranes. Major lipid groups include  fats ,  phospholipids ,  steroids , and  waxes .​

Lipids that contain a functional group ester are hydrolysable in water. These include neutral fats, waxes, phospholipids, and glycolipids.
Nonhydrolyzable lipids lack such functional groups and include steroids and fat-soluble vitamins (. A, D, E, and K). Fats and oils are composed of triacylglycerols or triglycerides. These are composed of glycerol (1,2,3-trihydroxypropane) and 3 fatty acids to form a triester. Triglycerides are found in blood tests. Complete hydrolysis of triacylglycerols yields three fatty acids and a glycerol molecule. 

Steroids are lipids that function as signaling molecules

steroids are lipids that function as signaling molecules

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steroids are lipids that function as signaling moleculessteroids are lipids that function as signaling moleculessteroids are lipids that function as signaling moleculessteroids are lipids that function as signaling moleculessteroids are lipids that function as signaling molecules

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