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    Amino Acids and Fatty Acids

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    37. The most basic amino acid is ________
    38. The most acidic amino acid is ________
    39. The reaction below (see attached) is an example of:
    a. nucleophilic addition
    b. electrophilic addition
    c. nucleophilic acyl substitution
    d. electrophilic substitution

    Use the following terms for the next few questions:
    a. Ligases
    b. Fibrous proteins
    c. Conjugated protein
    d. Hydrolases
    e. Simple protein
    f. Globular proteins
    g. Lyases
    h. Transferases

    40. _________ Proteins which yield other compounds in addition to amino acids on hydrolysis
    41. _________ Proteins which are tough and insoluble in water
    42. _________ Enzymes which catalyze the breaking away of a small molecule such as H2O from a substrate.
    43. _________ Enzymes which catalyze the bonding together of two substrates.

    Match the diagrams in the attachment to:

    44. starting material for fatty acid biosynthesis
    45. a phosophoglyceride
    46. a prostaglandin
    47. monoterpene precursor
    48. a triglyceride
    49. a sphingolipid
    50. a soap
    51. a cephalin
    52. a steroid
    53. a sesquiterpene

    54. Abietic acid is an example of:
    a. a monoterpene
    b. a sesquiterpene
    c. a diterpene
    d. a sesterpene
    55. Draw the most stable chair conformation of terpin hydrate.
    56. Mixtures of esters of long-chain carboxylic acids with long-chain alcohols are called:
    a. waxes
    b. fats and oils
    c. fatty acids
    d. soaps
    57. Chemically, these are triacylglycerols, triesters of glycerol with three long-chain carboxylic acids.
    a. waxes
    b. fats and oils
    c. fatty acids
    d. soaps
    58. The major lipid components of cell membranes are:
    a. sphingolipids
    b. prostaglandins
    c. phosphoglycerides
    d. terpenoids
    59. A group of C20 lipids that contain a five-membered ring with two long side chains
    a. sphingolipids
    b. prostaglandins
    c. phosophoglycerides
    d. terpenoids
    60. Cell membranes, which form an effective barrier to the passage of ions and other components into and out of the cell, are:
    a. fatty acid esters
    b. tricacylglycerols
    c. lipid bilayers
    d. micelles

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    Solution Preview

    Twenty Three Biochemistry Test Review Questions with Structures
    Proteins and Lipid Structures!!!


    37. Arginine is the most basic amino acid because it has the highest isoelectric point. That's the pH at which the molecule is neutral.

    38. The most acidic is, therefore, glutamic acid.

    39. The reaction is a nucleophilic addition ...

    Solution Summary

    A selection of organic chemistry problems involving amino acids, fill in the blanks, matching and fatty acids.