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Macromolecules Review

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  • What molecule is the best source of short term energy?
    glucose
    glycerol
    galactosidase
    glycogen
  • What do enzymes do?
    speed up chemical reactions
  • Describe the three parts of a phospholipid.
    phosphate head, glycerol backbone, two fatty acid tails
  • What type of biomolecule is this?
    carbohydrate
  • glycerol & fatty acids
    nucleic acids
    proteins
    carbs
    lipids
  • 19. Which molecule builds cell walls in plants, gives plants strength and flexibility, and is the most abundant organic compound on Earth?
    glycogen
    trans fat
    phospholipid
    cellulose
  • proteins are polymers formed from
    polysaccharides
    phospholipids
    amino acids
    nitrogenous base
  • Which of the following is NOT a function of proteins?
    can control rate of chemical reactions in the cell
    moves things around the cell
    form cell structure
    provide quick energy for the cell
  • Describe part B.
    hydrophobic, hydrocarbon chain, fatty acid tail
  • Which biomolecule is always hydrophobic?
    lipid
  • What type of biomolecule is this?
    nucleic acid
  • What is the primary structure of proteins?
    chain of amino acids linked by covalent bonds
  • What is the tertiary structure of proteins?
    complete three-dimensional folding, may be functional unless subunits are needed
  • What are polysaccharides like cellulose and chitin used for?
    cell walls (cell structure)
  • 10. Which of the following molecules is NOT a polymer?
    glucose
    protein
    glycogen
    cellulose
  • What type of biomolecule is this?
    polypeptide / protein
  • What is the function of nucleic acids?
    store, communicate, transmit genetic information
  • polymers are joined together to create larger molecules named monomers.
    true
    false
  • Which biomolecule is a long-term store of energy?
    lipid
  • 34. All organisms contain the element carbon.
    True
    False
  • Amino acids are the monomer for which biomolecule?
    polypeptide / protein
  • All macromolecules contain nitrogen.
    False
    True
  • 9. Oils and waxes are formed from which of the following macromolecules?
    proteins
    carbs
    lipid
    nucleic acids
  • 6. Which of the following is NOT an organic molecule found in living organisms?
    phospholipid
    sodium chloride
    dextrose
    maltose
  • What type of bond keeps atoms together within one molecule of water? (be specific)
    polar covalent
  • Which biomolecule is a short-term store of energy?
    carbohydrates
  • What type of biomolecule is this?
    lipid