A cell membrane component consists of a diglyceride and a phosphate group. If this molecule is lecithin, which nitrogenous base is attached?
Q1. A cell membrane component consists of a diglyceride and a phosphate group. If this molecule is lecithin, which nitrogenous base is attached?
Answer: Choline
Explanation: Phosphatidylcholine contains choline, phosphate, glycerol, and fatty acids. Serine is found in different phospholipids like phosphatidylserine, not lecithin.