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MDCAT Biology QUESTION #4241
Question 1
Arachidonic acid, which is the precursor molecule for prostaglandins is:
  • A saturated fatty acid with 18 carbons
  • An unsaturated fatty acid with 18 carbons
  • A tri-unsaturated fatty acid with 20 carbons
  • A tetra-unsaturated fatty acid with 20 carbons✔️
Correct Answer Explanation
Arachidonic acid: 20 carbons, 4 double bonds.