Marks Chapter 11 Cell Signaling By Chemical Messengers Quiz

17 Questions | Total Attempts: 362

SettingsSettingsSettings
Cell Quizzes & Trivia

A review quiz of marks chapter 11


Questions and Answers
  • 1. 
    The chemical messengers of the endocrine system are called?
    • A. 

      Endotransmitters

    • B. 

      Cytokines

    • C. 

      Eicosanoids

    • D. 

      Hormones

  • 2. 
    Autocrine transmitters operate on the same cell or nearby cells of the same type
    • A. 

      True

    • B. 

      False

  • 3. 
    Which type of receptors travel to nearby cells?
    • A. 

      Endocrine

    • B. 

      Paracrine

    • C. 

      Hypocrine

    • D. 

      Autocrine

  • 4. 
    Acetylcholine release is triggered by the influx of what into the cell?
    • A. 

      Ca^2+

    • B. 

      Na+

    • C. 

      K+

    • D. 

      Ca+

  • 5. 
    Aa nicotinic acetlycholine receptor has how many TOTAL membrane-spanning helical regions?
    • A. 

      20

    • B. 

      12

    • C. 

      4

    • D. 

      5

  • 6. 
    When acetylcholine binds to a nicotinc acetlycholine recepter the channel allows K+ ions to diffuse into the cell and Na+ ions to diffuse out
    • A. 

      True

    • B. 

      False

  • 7. 
    Many endocrine hormones also exhibit paracrine or autocrine actions
    • A. 

      True

    • B. 

      False

  • 8. 
    Thyroid hormones are derived from what amino acid?
    • A. 

      Tryptophan

    • B. 

      Tyrosine

    • C. 

      Threonine

    • D. 

      Glutamate

  • 9. 
    Some hormones are also neurotransmitters
    • A. 

      True

    • B. 

      False

  • 10. 
    Epinephrine is a
    • A. 

      Polypeptide hormone

    • B. 

      Catecholamine

    • C. 

      Thyroid hormone

    • D. 

      Steroid hormone

  • 11. 
    All eicosanoids are derived from
    • A. 

      Arachidonic acid

    • B. 

      Glutamic acid

    • C. 

      Tyrosine

    • D. 

      Glutamate

  • 12. 
    Messengers that use intracellular receptors must be
    • A. 

      Hydrophilic

    • B. 

      Hydrophobic

    • C. 

      Small molecules

    • D. 

      Macromolecules

  • 13. 
    The steroid hormone/thyroid hormone superfamily of receptors resides primarily in the cytoplasm
    • A. 

      True

    • B. 

      False

  • 14. 
    The Raf protein is also called
    • A. 

      Ras

    • B. 

      Grb2

    • C. 

      Son of Sevenless

    • D. 

      MAPKKK

  • 15. 
    A G-protein receptor is also a 
    • A. 

      Tyrosine Kinase receptor

    • B. 

      Heptahelical receptor

    • C. 

      JAK-STAT receptor

    • D. 

      Serine-threonine receptor

  • 16. 
    The Insulin Receptor is a
    • A. 

      Tyrosine Kinase receptor

    • B. 

      Heptahelical receptor

    • C. 

      JAK-STAT receptor

    • D. 

      Serine-threonine receptor

  • 17. 
    Insulin causes the insulin receptor to dimerize
    • A. 

      True

    • B. 

      False

Back to Top Back to top