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Quiz

AP Biology Chapters 4 and 5

mcarpent6140 15 perguntas

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Perguntas do quiz (15)

  1. 1Shown here are the structures of fructose and glucose. These two molecules are
    1. Ageometric isotopes
    2. Benantiomers
    3. Cgeometric isomers
    4. Dstructural isomers
    5. Enonisotopic isomers
  2. 2Which of the following statements correctly describes geometric isomers?
    1. AThey have variations in arrangement around a double bond
    2. BThey have an asymmetric carbon that makes them mirror images
    3. CThey have the same chemical properties
    4. DThey have different molecular formulas
    5. ETheir atoms and bonds are arranged in different sequences
  3. 3Research indicates the Ibuprofen, a drug used to relieve inflammation and pain, is a mixture of two enantiomers; that is, molecules that
    1. Ahave identical three-dimensional shapes
    2. Bare mirror images of one another
    3. Clack an asymmetric carbon
    4. Ddiffer in the location of their double bonds
    5. Ediffer in electrical charge
  4. 4Research indicates that Albuterol, a drug used to relax bronchial muscles, improving airflow and thus offering relief from asthma, consists only of one enantiomer, the R- form. Why is it important for this drug to consist of only one enantiomer form, rather than a mixture of enantiomers?
    1. ADifferent enantiomers may have different or opposite physiological effects
    2. BIt is impossible to synthesize mixtures of enantiomers
    3. CIt is much less expensive to synthesize one enantiomer at a time
    4. DAlbuterol is an example of a compound for which only one enantiomer exists
    5. EOnly the R-form of Albuterol has been studied; until more information is available, physicians prefer to use the pure R- form.
  5. 5Which of the following is TRUE of both starch and cellulose?
    1. AThey are both polymers of glucose
    2. BThey are geometric isomers of each other.
    3. CThey can both be digested by humans
    4. DThey are both used for energy storage in plants
    5. EThey are both structural components of the cell wall
  6. 6Which of the following is true of cellulose?
    1. AIt is a polymer composed of sucrose monomers
    2. BIt is a storage polysaccharide for energy in plant cells
    3. CIt is a storage polysaccharide for energy in animal cells
    4. DIt is a major structural component of plant cell walls
    5. EIt is a major structural component of animal cell plasma membranes.
  7. 7Humans can digest starch but not cellulose because
    1. Athe monomer of of starch is glucose, while the monomer of cellulose is galactose
    2. Bhuman has enzymes that can hydrolyze the beta glycosidic linkages of starch but no the alpha glycosidic linkages of cellulose
    3. CHumans have enzymes that can hydrolyzes the alpha glycosidic linkages of starch but not the beta glycosidic linkages of cellulose
    4. Dhumans harbor starch-digesting bacteria in the digestive tract
    5. Ethe monomer of starch is glucose, while the monomer of cellulose is maltose
  8. 8All of the following statements concerning saturated fats are true except
    1. AThey are more common in animals than in plants
    2. BThey have multiple double bonds in the carbon chains of their fatty acids
    3. CThey generally solidify at room temperature
    4. DThey contain more hydrogen than unsaturated fats having the same number of carbon atoms
    5. EThey are one of several factors that contribute to atherosclerosis.
  9. 9The R group or side chain of the amino acid serine is -CH2 -OH. The R group or side chain of the amino acid alanine is -CH3. Where would you expect to find these amino acids in a globular protein in aqueous solution?
    1. ASerine would be in the interior, and alanine would be on the exterior of the globular protein.
    2. BAlanine would be in the interior, and serine would be on the exterior of the globular protein.
    3. CBoth serine and alanine would be on the interior of the globular protein.
    4. DBoth serine and alanine would be on the exterior of the globular protein.
    5. EBoth serine and alanine would be in the interior and exterior of the globular protein.
  10. 10If one strand of a DNA molecule has the sequence of bases 5' ATTGCA3' the other complementary strand would have the sequence
    1. A5'TAACGT3'
    2. B3' TAACGT5'
    3. C5' UAACGU 3'
    4. D3'UAACGU5'
    5. E5'UGCAAU3'

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Chapter 4 and 5 study guide
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English
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