Linolenic acid
18:3; 9,12,15
Essential
Omega 3
Linoleic acid
18:2; 9.12
Essential FA
Omega 6
Arachnidonic acid
20:4; 5,8,11,14
Essential if linoleic is absent
Co-factor needed in activation of FA
Vitamin B5 - panthotenic acid
Enzyme for FA activation
Fatty acyl-CoA synthetase
FA synthesis - what organs?
Liver
Lactating mammary glands
Adipose (minor)