Saturated and Unsaturated Fatty Acids::
Saturated fatty acids have all the carbon atoms in the chain saturated with hydrogen atoms when a double bond is present between two carbon atoms the fatty acids is termed as unsaturated fatty acid The degree of unsaturation varies according to the presence of double bonds if one or more double bonds are present in a fat it is called unsaturated fatty acid if there are more double bonds in a fat it is called polyunsaturated fatty acid
Palmitic stearic and butyric acids are saturated fatty acids Oleic linoleic linolenic and arachidonic acids are unsaturated oils they have one two three and four double bonds respectively the unsaturated fatty acids are often described as essential fatty acids Vegetable oils are rich in linoleic acid while fish oils and animal fats are rich in arachidonic acid
https://medicaleducatio.blogspot.com/2022/03/human-anatomy-and-physiology_23.html