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Biochem lect 7 - free radicals and the human body

Alannah McDonnell 16 preguntas 5,0 (2 valoraciones)

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Preguntas del test (16)

  1. 1Oxygen can be toxic
    1. AVerdadero
    2. BFalso
  2. 2Which of theses are reasons that oxygen is essential?
    1. AOxidation reactions
    2. BGeneration of ATP (oxidative phosphorylation)
    3. CDetoxification reactions
    4. DAnaerobic glycolysis
    5. EBio synthetic reactions
  3. 3Why is oxygen classified as toxic?
    1. AWhen it accepts single electrons it is transformed into highly reactive oxygen radicals than can damage things.
    2. BWhen it accepts double electrons it is transformed into highly reactive oxygen radicals than can damage things.
    3. CWhen it accepts single electrons it is transformed into non-reactive oxygen radicals than can damage things.
    4. DIt takes part in unnecessary reactions
  4. 4What do oxygen radicals damage?
    1. ACellular lipids
    2. BProteins
    3. CDNA
    4. DGlucose
    5. EStarch
  5. 5What are the major sources of primary ROS in the cell?
    1. ACoQ generates superoxide in ETC
    2. BRespiration in lungs
    3. COxidase, oxygenates and peroxidases
    4. DIonizing radiation
    5. ENon-ionizing radiation
  6. 6Where can evidence of free radical damage be seen?
    1. A>100 disease states
    2. B<100 disease states
    3. C>1000 disease states
  7. 7Where is evidence of free radical damage in disease states described?
    1. AAs primary cause of the disease
    2. BBy enhancing complications
    3. CIn the lumen of cells
  8. 8Superoxide and the hydroxyl radical Initiate lipid peroxidation in..
    1. ACellular membrane
    2. BMitochondrial membrane
    3. CNuclear membrane
    4. DER membrane
  9. 9Increase in membrane permeability due to radical-mediated damage leads to..
    1. AA further influx of ca2+
    2. BRepair of the mtiochondria
    3. CCa2+ leaving the cell
    4. DFurther escaping of radicals
  10. 10Oxidation of nuclear and mitochondrial DNA results in ...
    1. AStrand breaks
    2. BVarious damages
    3. CRNOS
    4. DInflux of Ca2+

Información

Descripción
biochem Test sobre Biochem lect 7 - free radicals and the human body, creado por Alannah McDonnell el 05/03/2018.
Idioma
English
Visitas
42
Etiquetas
biochem
Valoración
5,0 de 5 · 2 valoraciones
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