Answer:
The structure of the lecithin showing the fatty acyl groups are found in the attached file.
Explanation:
Arachidonic acid does not exist in free form inside cells, but is generally esterified in membrane phospholipids, in the C2 position of phosphatidylcholine and phosphotidylinositol. Its release depends on the action of acylhydrolases. Arachidonic acid is released from phospholipids by activation of cell phospholipases.
