Question

complete the paragraph to describe the phospholipid bilayer. both the intracellular and extracellular environments contain water. the water the phosphate - containing heads and the fatty acid tails of the phospholipids. so the heads of the phospholipids face, and the tails face in the lipid bilayer.

Explanation:

Phosphate - containing heads are hydrophilic and fatty - acid tails are hydrophobic. Hydrophilic substances interact with water and hydrophobic substances avoid water. In a cell membrane's phospholipid bilayer, hydrophilic heads face water (intracellular and extracellular) and hydrophobic tails face each other away from water.

Answer:

1. Attracts
2. Repels
3. The intracellular and extracellular environments
4. Each other