22. Proteins and Nucleic Acids: Information Carriers   Previous PageNext Page
       QUESTIONS

9. How is this information used by the creature that carries it?
10. What kinds of instructions are carried by these genetic "archives"? How is the information read out?
11. What is the difference between fibrous and globular proteins? Which are used for structural purposes? What use is made of the other class of proteins?
12. How can globular proteins be constructed from long polypeptide chains?
13. Why are there several different kinds of amino acid side chains in proteins? What different chemical capabilities do these side chains have? Why are some of them found more often on the interior of proteins, and others on the outside?
14. How does the bond structure of the polypeptide link in proteins affect the way that proteins are folded?
15. How does the amide bond structure assist in the formation of hydrogen bonds?
16. How do hydrogen bonds contribute to the three-dimensional structure of proteins?
17. What is the basic structural unit in silk? What is the fundamental unit in wool? Is this structural unit ever found in globular proteins? If so, give an example.
18. What is the physiological role of hemoglobin? Of myoglobin? In what way are these two molecules similar in structure?
19. What is the heme group? How does the iron atom of heme interact with the organic framework?

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