AP BIOLOGY

Detailed explanation-1: -The main component of the cell membrane is a phospholipid bi-layer or sandwich. The heads (the phospho part) are polar while the tails (the lipid part) are non-polar.

Detailed explanation-2: -The polar section of a phospholipid is the part with the phosphate group. This is sometimes called the polar head of the molecule. This is the part that can interact with water. The nonpolar, or apolar, part of a phospholipid is the long fatty acid tails.

Detailed explanation-3: -Phospholipids. Phospholipids consist of two hydrophobic “tails, ” which are fatty acid chains, and one hydrophilic “head, ” which is phosphate group. They connect with glycerol and the “head” is typically found at the sn-3 position.

Detailed explanation-4: -The head of a phospholipid is made of an alcohol and phosphate group, while the tails are chains of fatty acids. Phospholipids can allow nonpolar molecules OR small molecules like water and oxygen to pass into or out of the cell.

Detailed explanation-5: -Q. Cell membrane is made up of a phospholipid bilayer, with the phosphate group forming the head and the lipid chain forming the tail.