Following are the statements with reference to 'lipids'. (a) Lipids having only single bonds are called unsaturated fatty acids. (b) Lecithin is a phospholipid. (c) Trihydroxy propane is glycerol. (d) Palmitic acid has 20 carbon atoms including carboxyl carbon. (e) Arachidonic acid has 16 carbon atoms. Choose the correct answer from the options given below.

Step-by-step solution

The correct statements about lipids are: (1) Lipids having only single bonds are called saturated fatty acids, while those having single, double and triple bonds are called unsaturated fatty acids. (2) Lecithin is a phospholipid. (3) Trihydroxy propane or Propane - 1 , 2   3 -triol is glycerol. (4) Palmitic acid has 16 carbon atoms including carboxyl carbon. (5) Arachidonic acid has 20 carbon atoms including carboxyl carbon.