Question

Cod liver oil ( Fish oil) is source of
A) Polyunsaturates
B) Minerals and fats
C) Fats, minerals and proteins
D) Vitamins A and D

Answer 1

Fatty acids are carboxylic acids which are conjugated with long aliphatic chain that are found in fats and oils and also cell membranes. It serves as the main source of energy for carrying out various activities.

Complete answer:
Fatty acids can be classified not only by the presence of saturated or unsaturated aliphatic chains but also by its length, branching and carbon content. Fatty acids can be classified into four different classes on the basis of length- short chain fatty acid having five or less carbon atoms in the aliphatic chain, medium chain fatty acid having 6 to 12 carbon atoms in the aliphatic chain, long chain fatty acid having 13 to 21 carbon atoms in the aliphatic chain and very long chain fatty acid having more than 22 carbon atoms in aliphatic chain.

Many fatty acids are linear whereas branched ones also exist. On the basis of saturation, fatty acids are classified into saturated and unsaturated fatty acids. Unsaturated fatty acids are further classified into cis and trans isomers depending on the position of the carbon atoms on either side of the bond. Cod liver oil is derived from cod fish and contains omega 3 fatty acids along with vitamin A and D.

Hence the correct answer is option (D) Vitamins A and D.

Note: Cod liver oil is widely used as a dietary supplement. It is to individuals going through vitamin A and D deficiency and also to patients undergoing depression and psoriasis.