- A Triglyceride
- B Wax
- C Phospholipid
- D Steroid
Correct answer: C. Phospholipid
Explanation: Phospholipids form the lipid bilayer of cell membranes. Their hydrophilic head and hydrophobic tail arrange into a bilayer in water.
Concept context
Carbohydrates, proteins, lipids, nucleic acids, and enzyme kinetics. Essential foundation for understanding metabolism.