Which interactions are responsible for the formation of lipid bilayer in the watery environment of the body?
Correct answer: A. Hydrophobic interactions between fatty acid tails
- A. Hydrophobic interactions between fatty acid tails
- B. Hydrophobic interactions between phosphate heads
- C. Hydrophilic interactions between fatty acid tails
- D. Hydrogen bonding between fatty acid tails
Explanation
Being cylindrical, phospholipid molecules spontaneously form bilayers in aqueous environments. In this energetically most-favorable arrangement, the hydrophilic heads face the water at each surface of the bilayer, and the hydrophobic tails are shielded from the water in the interior.
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