Ideas in this flowchart

• Phospholipids have a distinctive structure that enables their membrane functions.
• Like triglycerides, phospholipids have a glycerol backbone.
• Unlike triglycerides, they have two fatty-acid molecules and a third chain linked to a phosphate group with a nitrogen-containing group.
• This unique structure makes phospholipids water soluble.
• Phospholipids are amphiphilic, with water-repelling and water-attracting regions.
• The fatty-acid sides are hydrophobic and dislike water.
• The phosphate group is hydrophilic and interacts with water.
• In the body, phospholipids bind together to form cell membranes.
• Their amphiphilic nature governs their function as components of cell membranes.
• Phospholipids form a double layer within cell membranes.
• The double layer protects the inside of the cell from the outside environment.
• The membrane also allows fat and water to pass through.