In a diagram of the cell membrane bilayer, the fatty acid 'tails' of phospholipids face each other internally. What is the chemical nature of these tails?
Q1. In a diagram of the cell membrane bilayer, the fatty acid 'tails' of phospholipids face each other internally. What is the chemical nature of these tails?
Answer: Hydrophobic and non-polar
Explanation: Phospholipids are amphipathic; the non-polar fatty acid tails are hydrophobic and orient away from water, while phosphate heads are hydrophilic.