Question

Are the phosphate heads of the membrane (the phospholipid bilayer) polar or nonpolar?


A.Polar


B.Nonpolar

Answers

GPT-4o mini
A. Polar

The phosphate heads of the phospholipid bilayer are polar, while the fatty acid tails are nonpolar. This amphipathic nature is what allows phospholipids to form a bilayer in aqueous environments, with the polar heads facing outward towards the water and the nonpolar tails facing inward, away from the water.