Answer to Question 1
Linolenic acid belongs to a family of polyunsaturated fatty acids known as omega-3 fatty acids, a family that also includes EPA and DHA. EPA and DHA are found primarily in fish oils. The human body cannot make linolenic acid, but given dietary linolenic acid, it can make EPA and DHA, although the process is slow. The importance of omega-3 fatty acids has been recognized since the 1980s, and research continues to unveil impressive roles for EPA and DHA in metabolism and disease prevention. The brain has a high content of DHA, and both EPA and DHA are needed for normal brain development. DHA is also especially active in the rods and cones of the retina of the eye. Today, researchers know that these omega-3 fatty acids are essential for normal growth and development and that they may play an important role in the prevention and treatment of heart disease.
Answer to Question 2
a
Determinants of health
The effect of a double bond on the shape of fatty acids
Effects of Insulin and Glucagon on Glucose and Glycogen
Overview of intermediary metabolism with fatty acid and triacylglycerol pathways highlighted
Glucogenic amino acids
Effects of Ac and Ds elements on gene expression