Chapter 25 – Synthetic and Natural Organic Polymers
22.
What type of polymer is represented by the following repeating segment?
23. An amino acid is a compound that contains at least
Chapter 25 – Synthetic and Natural Organic Polymers
24. A peptide bond (also called an amide bond) joins two amino acids together. What atoms
are linked by this bond?
25. An essential amino acid is one that
Chapter 25 – Synthetic and Natural Organic Polymers
Chapter 25 – Synthetic and Natural Organic Polymers
27.
The functional group
found in proteins is called a (an)
Chapter 25 – Synthetic and Natural Organic Polymers
28. Which of the structures below corresponds to the dipeptide alanylcysteine? The parent amino acids are shown below.
Chapter 25 – Synthetic and Natural Organic Polymers
Chapter 25 – Synthetic and Natural Organic Polymers
29. Which of the structures below corresponds to the dipeptide cysteylananine? The parentamino acids are shown below.
Chapter 25 – Synthetic and Natural Organic Polymers
Chapter 25 – Synthetic and Natural Organic Polymers
30. The secondary structure of a protein is the
31. A protein that has been reversibly denatured has
Chapter 25 – Synthetic and Natural Organic Polymers
32. Which of these molecules is a product of the hydrolysis of DNA?
33. Phosphorus is an essential mineral element. It is an important atom in which one of the
following?
Chapter 25 – Synthetic and Natural Organic Polymers
34. The backbone of a strand of nucleic acid consists of
35. Which choice contains all three molecular units found in nucleotides?
36. Which choice lists both the sugar and the nitrogen base that are a part of RNA but are not
part of DNA?
Chapter 25 – Synthetic and Natural Organic Polymers
37. Which one of these molecules is part of the make-up of both DNA and RNA?
38. The intermolecular force between bases on the opposite strands of DNA responsible for its
double-helical structure is
Chapter 25 – Synthetic and Natural Organic Polymers
39. Which nitrogen base is found in RNA but not in DNA?
40. Cysteine and methionine are unique among the twenty essential amino acids in that they
41. Proteins occurring in the b-pleated sheet structure
Chapter 25 – Synthetic and Natural Organic Polymers
42. Which of the following statements about the binding of oxygen to deoxyhemoglobin is
correct?
43. Amides are synthesized from two classes of organic compounds. Those two types of
compounds are
Chapter 25 – Synthetic and Natural Organic Polymers
44.
Select True or False: The reaction of the diamine and di-carboxylic acid shown below produces nylon polymer. The correct
structure for the repeating unit of the nylon polymer follows the arrow.
Chapter 25 – Synthetic and Natural Organic Polymers
45.
Select True or False: A portion of the polymer Teflon is shown here. The monomer that would be used to produce this
polymer would consist of one carbon and two fluorine atoms.polymer (Teflon):
46. Select True or False: The monomer used to prepare polyvinyl chloride (PVC) is
CHCl=CHCl.
47. Select True or False: The primary structure of a protein refers to the unique amino acid
sequence of the polypeptide chain.
Chapter 25 – Synthetic and Natural Organic Polymers
48.
Select True or False: The following amino acids all have nonpolar side chains.
49. Select True or False: Both DNA and RNA have double-helical structures.
50. Select True or False: Hydrogen bonding, dispersion forces, ionic forces, and dipole-dipole
forces all affect the structure of a protein.