2.   There’s an interesting biochem caper—
      A future world food supply shaper.
      Seem’s bacteria’ll toil
      To make protein from oil
      Or just think—juicy steak from newspaper!
      CHEM 13 NEWS, April 1975, p. 894

3.   Word Search (see Appendix for master copy)

       

Words about the concepts in this module can be obtained from the clues
given. Find these words in the block of letters:

 1.    Model of protein structure in which intrachain hydrogen
        bonding holds
        polypeptide chains together in a coil. (2 words)
 2.    Building block of proteins. (2 words)
 3.    Having both acidic and basic character.
 4.    The loss of form and function of a protein.
 5.    Type of bond formed between sulfur atoms of polypeptide chains.
 6.    Technique used for separating proteins based on their molar
        mass and charge.
 7.    pH point at which an amino acid has no net charge.
 8.    Another name for the amide bond joining two amino acids.
 9.    Biocatalyst protein.
10.  Another name for a proenzyme or inactive form of an enzyme.

Answers: 1.  ALPHA HELIX 2.  AMINO ACID 3.  AMPHOTERIC
4. DENATURATION 5.  DISULFIDE 6.  ELECTROPHORESIS
7.  ISOELECTRIC 8.   PEPTIDE 9.  ENZYME 10.  ZYMOGEN

4.   See cartoons at end of module.
 

   1.   The World of Chemistry videotape “Number 23: Proteins: Structure and Function,”
                              is a good review of proteins with emphasis on primary and secondary structure.
                              World of Chemistry Videocassettes. Annenberg/CPB Project, P.O. Box 1922,
                              Santa Barbara, CA 93116-1922; (800) 532-7637; World of Chemistry Series,
                              Atlantic Video, 150 South
 

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