Question

1. what are the 2 parts of the phospholipid bilayer? which part is hydrophilic and which is hydrophobic?

Explanation:

A phospholipid bilayer has two main parts: the head and the tail. The head contains a phosphate group and is hydrophilic (water - loving) because it is polar and can interact with water molecules. The tail consists of fatty acid chains and is hydrophobic (water - fearing) as it is non - polar and repels water.

Answer:

The two parts of the phospholipid bilayer are the head and the tail. The head is hydrophilic, and the tail is hydrophobic.