A researcher isolates a molecule from a cell membrane containing glycerol, two fatty acids, and a phosphate group. This molecule is a:
Q1. A researcher isolates a molecule from a cell membrane containing glycerol, two fatty acids, and a phosphate group. This molecule is a:
Answer: Phosphatidic acid derivative
Explanation: Phospholipids contain two fatty acids and a phosphate group; triglycerides are tempting but they contain three fatty acids and no phosphate.