Prostaglandins are obtained from:-: (A) Stearic acid, (B) Arachidonic acid, (C) Linoleic acid, (D) Linolenic acid
Answer is B. NOTE:-Arachidonic Acid is a 20 carbon fatty acid. No.of double bonds in Arachidonic acid =4 Key points to Remember Linoleic Acid- Most essential Fatty Acid. Richest source of linoleic Acid - Safflower oil. Richest source of Arachidonic Acid - Safflower oil. Richest source of Linolenic Acid - Flaxseed oil.