Practice Multiple Choice AP Biology Biochemistry

13 Questions

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Practice Multiple Choice AP Biology Biochemistry

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Questions and Answers
  • 1. 
    The elements found in the greatest abundance in living organisms are
    • A. 

      Carbon, hydrogen, and nitrogen

    • B. 

      Carbon, oxygen, hydrogen and nitrogen

    • C. 

      Carbon, oxygen, hydrogen and calcium

    • D. 

      Carbon, oxygen, potassium and phosphorus

  • 2. 
    At least one double covalent bond is found in which of the following molecules?I.  O2 II.  CO2III.  MgCl2
    • A. 

      I only

    • B. 

      II only

    • C. 

      III only

    • D. 

      I and II only

    • E. 

      I, II, and III

  • 3. 
    Match the correct formula to the correct name of the functional group.  
    • A. -OH
    • A.
    • B. -COOH
    • B.
    • C. -C=O
    • C.
    • D. -SH
    • D.
    • E. -NH2
    • E.
  • 4. 
    Hydrocarbons
    • A. 

      Can take the form of straight chains, branched chains or rings

    • B. 

      Are usually water soluble

    • C. 

      Are compounds consisting only of carbon, hydrogen and oxygen

    • D. 

      Are found primarily in the proteins of living organisms

    • E. 

      Usually impart hydrophilic properties to biological molecules

  • 5. 
    Which two functional groups are always present in an amino acid?
    • A. 

      Glycine and amino

    • B. 

      Glycine and carbonyl

    • C. 

      Ketone and sulfhydryl

    • D. 

      Amino and carboxyl

  • 6. 
    This molecule would most likely be part of a (n)
    • A. 

      Polysaccharide

    • B. 

      Polypeptide

    • C. 

      Hydrocarbon

    • D. 

      Nucleoside triphosphate

    • E. 

      Nucleic acid

  • 7. 
    If two molecules of this type were to bond together (polymerization), this would
    • A. 

      Require the addition of one water molecule between them

    • B. 

      Involve the formation of a bond between the two amino groups with the loss of one water molecule

    • C. 

      Involve the formation of a bond between the two carboxyl groups with the loss of one water molecule

    • D. 

      Involve the formation of a bond between the amino group of one and the carboxyl group of the other

    • E. 

      Cause a polymer to become a monomer by dehydration synthesis

  • 8. 
    Match the organic molecule to the description.
    • A. Cellulose
    • A.
    • B. DNA
    • B.
    • C. Protein
    • C.
    • D. Fatty Acid
    • D.
    • E. Starch
    • E.
  • 9. 
    How does starch differ from cellulose?
    • A. 

      Starch can form ring structures, but cellulose cannot

    • B. 

      Cellulose is only found in plants, but starch is found in both plants and animals

    • C. 

      Starch is a storage polysaccharide, but cellulose is a structural polysaccharide

    • D. 

      Cellulose has nitrogen containing side chains that link it together to form strong fibers

    • E. 

      Cellulose is a polymer of glucose, but starch is a polymer of sucrose

  • 10. 
    All of the following could be present in a phospholipid molecule EXCEPT
    • A. 

      A saturated fatty acid

    • B. 

      Phosphate

    • C. 

      A hydrophilic portion

    • D. 

      Three unsaturated fatty acids

    • E. 

      Glycerol

  • 11. 
    This molecule would most likely be found in
    • A. 

      DNA

    • B. 

      RNA

    • C. 

      Protein

    • D. 

      Cellulose

    • E. 

      Steroids

  • 12. 
    Match the monomer and bond to its description
    • A. glycosidic linkage
    • A.
    • B. ester linkage
    • B.
    • C. peptide bond
    • C.
    • D. phosphodiester bond
    • D.
    • E. amino acid
    • E.
    • F. fatty acid
    • F.
    • G. monosaccharide
    • G.
    • H. nucleotide
    • H.
  • 13. 
    Match the vocabulary to its description
    • A. disaccharide
    • A.
    • B. glycogen
    • B.
    • C. phospholipid
    • C.
    • D. polysaccharide
    • D.
    • E. primary structure
    • E.
    • F. quaternary structure
    • F.
    • G. saturated
    • G.
    • H. secondary structure
    • H.
    • I. starch
    • I.
    • J. steroid
    • J.
    • K. tertiary structure
    • K.
    • L. triglyceride
    • L.
    • M. unsaturated
    • M.