1.4.2 Phospholipids

Cards (16)

  • What are phospholipids important structural components of?
    Cell membranes
  • Phospholipids are composed of a glycerol backbone, two fatty acids, and a phosphate group.
  • Phospholipids have a hydrophilic head and hydrophobic tails.
  • Match the component of a phospholipid with its property:
    Glycerol backbone ↔️ Structural unit
    Fatty acids ↔️ Hydrophobic tails
    Phosphate group ↔️ Hydrophilic head
  • The nonpolar tails of phospholipids are hydrophobic and repel water.
  • Phospholipids form a lipid bilayer in cell membranes with the heads facing outward towards the aqueous environment.
  • Which part of a phospholipid is polar and hydrophilic?
    Phosphate group
  • The hydrophobic tails of phospholipids are nonpolar and water-repelling.
  • Steps in the formation of a lipid bilayer:
    1️⃣ Phospholipids arrange with heads facing water
    2️⃣ Hydrophobic tails align inward
    3️⃣ Bilayer structure forms
  • Phospholipids are crucial lipids in cell membranes, composed of a glycerol backbone, two fatty acids, and a phosphate group. The phosphate group forms a hydrophilic head, while the fatty acids form hydrophobic tails.hydrophilic
  • Match the phospholipid component with its property and water interaction:
    Hydrophilic Head ↔️ Polar and hydrophilic
    Hydrophobic Tails ↔️ Nonpolar and hydrophobic
  • The polar head of a phospholipid is composed of a phosphate group and glycerol
  • What type of molecule are the nonpolar tails of phospholipids?
    Fatty acids
  • Describe the formation of a lipid bilayer when phospholipids are placed in water:
    1️⃣ Phospholipids are placed in water
    2️⃣ Hydrophilic heads face outwards towards water
    3️⃣ Hydrophobic tails orient inwards
    4️⃣ A lipid bilayer is formed
  • Phospholipids are essential components of cell membranes because they can form lipid bilayers.
  • In a lipid bilayer, the hydrophobic tails are shielded from water by the heads