Cards (16)

  • Each fatty acid molecule in a triglyceride binds to glycerol through an ester bond.
  • Arrange the components of a phospholipid molecule:
    1️⃣ Glycerol
    2️⃣ Two fatty acids
    3️⃣ Phosphate group
  • Match the component of a phospholipid with its description:
    Glycerol ↔️ Three-carbon backbone
    Fatty acids ↔️ Nonpolar, hydrophobic tails
    Phosphate group ↔️ Negatively charged, hydrophilic head
  • What are the two types of molecules that form triglycerides?
    Glycerol and fatty acids
  • What are fatty acids composed of?
    Long-chain carboxylic acids
  • Why are the fatty acid tails of a phospholipid hydrophobic?
    They are nonpolar
  • Water molecules are released during the formation of ester bonds in triglycerides.

    True
  • Match the component of a phospholipid with its characteristic:
    Glycerol ↔️ Three-carbon backbone
    Two fatty acids ↔️ Hydrophobic tails
    Phosphate group ↔️ Hydrophilic head
  • Lipids are insoluble in water because they primarily consist of long hydrocarbon chains.
  • Glycerol in a triglyceride is a three-carbon alcohol molecule.
  • Why are lipids insoluble in water?
    They are hydrophobic
  • Lipids contribute to the structure of cell membranes.

    True
  • Glycerol is a three-carbon alcohol.

    True
  • The phosphate group in a phospholipid creates the hydrophilic head of the molecule.
  • What is the charge of the phosphate group in a phospholipid molecule?
    Negative
  • What type of bond links glycerol and fatty acids in triglycerides?
    Ester bond