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5 Written Questions

5 Matching Questions

  1. Which of the following is not a pyrimidine?
    A. Uracil
    B. Adenine
    C. Thymine
    D. Cytosine
    E. All of these are pyrimidines
  2. Purines and pyrimidines are components in the building block units of all
    A. Nucleic acids
    B. Carbohydrates
    C. Polysaccharides
    D. Amino acids
    E. Enzymes
  3. Which pertains to DNA but not to RNA?
    A. Contains ribose
    B. Contains adenine
    C. Contains thymine
    D. Contains uracil
    E. Contains nucleotides
  4. The lipid group that is the major component of cell membranes are the
    A. Prostaglandins
    B. Waxes
    C. Phospholipids
    D. Steroids
    E. Triglycerides
  5. The purine___ always binds with the pyrimidine__ in DNA and RNA.
    A. guanine, cytosine
    B. cytosine, guanine
    C. adenine, guanine
    D. thymine, guanine
  1. a C. Phospholipids
  2. b C. Contains thymine
  3. c B. Adenine
  4. d A. Nucleic acids
  5. e A. guanine, cytosine

5 Multiple Choice Questions

  1. A. Phosphate-carbohydrates
  2. D. All of the choices are correct
  3. A. Carbon
  4. D. All of these
  5. A. Fatty acids

5 True/False Questions

  1. Most biochemical macromolecules are polymers, which are
    A. Chains of hydrophobic molecules
    B. Chains of electrolytic molecules
    C. Chains of repeating monomers
    D. Chains of repeating carbohydrates
    E. Chains of hydrogen bonds
    C. Chains of repeating monomers


  2. You are asked to make a 1M solution of Sodium Bicarbonate or Baking Soda (NaHCO3) for a DNA extraction lab. How many gram(s) of sodium bicarbonate (NaHCO3) should be added to 1L of water to make the required solution? Use the table of atomic masses to help you.
    A. 29 g
    B. 62 g
    C. 84 g
    D. 91.1 g
    C. 84 g


  3. A student forgot to label a beaker containing a DNA solution and a beaker containing a glucose solution. If chemical analysis was performed to identify the contents of each beaker, which of the following would be found in the beaker of DNA but not in the beaker with glucose?
    A. Amino acids
    B. Hydrogen and oxygen atoms
    C. Nitrogen and phosphorus
    D. Fatty acids
    E. Carbon atoms
    C. 84 g


  4. Which of the following would have glycosidic bonds?
    A. Triglycerides
    B. Monosaccharides
    C. Polypeptides
    D. Polysaccharides
    E. ATP
    B. Adenine


  5. All of the following are lipids except
    A. Cholesterol
    B. Starch
    C. Phospholipid
    D. Wax
    E. Triglyceride
    B. Starch


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