Quiz 13 Carbohydrates

Karen Timberlake, Chemistry, Los Angeles Valley College

Answer the questions below and then click "submit" to send your answers.

  1. Carbohydrates are produced in the green leaves of plants by the process of

    2. Your answer:
    photosynthesis
    metabolism
    hydrolysis
    respiration

  2. Carbohydrates may contain the functional groups

    3. Your answer:
    of an aldehyde
    of a ketone
    hydroxyl groups
    all of the above

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  3. The carbohydrate pictured above is a

    4. Your answer:
    ketopentose
    aldohexose
    ketopentose
    aldopentose

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  4. The compound pictured is

    5. Your answer:
    D-fructose
    D-glucose
    L-glucose
    D-galactose

  5. The chiral carbon atom in 2-butanol is

    6. Your answer:
    carbon 1
    carbon 4
    carbon 2
    carbon 3

  6. In the Fischer projection of D-glyceraldehyde, the -OH on the chiral carbon is drawn

    7. Your answer:
    to the left
    above
    below
    to the right

  7. In L-glucose, the -OH on carbon 5 is drawn

    8. Your answer:
    to the left
    above
    to the right
    below

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  8. The structure pictured is the Haworth structure of

    9. Your answer:
    beta-D-galactose
    beta-D-glucose
    alpha-D-glucose
    alpha-D-galactose

  9. The disaccharide sucrose is composed of the monosaccharides

    10. Your answer:
    D-glucose + D-glucose
    D-fructose + D-galactose
    D-glucose + D-fructose
    D-glucose + D-galactose

  10. The disaccharide composed of D-galactose and D-glucose is

    11. Your answer:
    maltose
    sucrose
    lactose
    cellobiose

  11. In maltose, the glucose molecules are connected by a

    12. Your answer:
    beta-1,4-glycosidic bond
    alpha -1,6-glycosidic bond
    1,2-glycosidic bond
    alpha -1,4-glycosidic bond

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  12. The structure shown above is

    13. Your answer:
    maltose
    lactose
    cellulose
    sucrose

  13. The polysaccharide that is the major structural material of wood and plants is

    14. Your answer:
    amylopectin
    glycogen
    cellulose
    amylose

  14. In amylopectin, the glucose molecules are connected by

    15. Your answer:
    beta-1,4-glycosidic bonds
    alpha-1,6-glycosidic bonds
    alpha-1,4-glycosidic bonds
    alpha-1,4-glycosidic bonds and alpha-1,6-glycosidic bonds

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  15. The piece of the chain pictured would be part of

    16. Your answer:
    amylopectin
    cellulose
    amylose
    glycogen

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