A Quick Practice Test Quiz On The Endocrine System!

20 Questions | Total Attempts: 1372

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A Quick Practice Test Quiz On The Endocrine System!


Questions and Answers
  • 1. 
    1. After consuming a banana split, which hormones would be expected to increase?
    • A. 

      Prolactin

    • B. 

      Glucagon

    • C. 

      Insulin

    • D. 

      Parathyroid Hormone

  • 2. 
    After having a double-bacon cheeseburger with a milkshake, which of the following hormones would NOT be expected to increase?
    • A. 

      Secretin

    • B. 

      Insulin

    • C. 

      Cholecystokinin

    • D. 

      Glucagon

  • 3. 
    Which of the following hormones would bind to receptors located on the inside of a cell?
    • A. 

      Testosterone

    • B. 

      Follicle-Stimulating Hormone

    • C. 

      Prolactin

    • D. 

      Growth Hormone

  • 4. 
    Which of the following accurately describes thyroid hormone?
    • A. 

      Released from the anterior pituitary

    • B. 

      Binds to receptors on the outside of the cell

    • C. 

      Derived from cholesterol

    • D. 

      Binds to receptors on the inside of the cell

  • 5. 
    Which of the following is a physiological function that is mediated by a hormone released by the posterior pituitary?
    • A. 

      Maturation of the egg and sperm

    • B. 

      Decrease in calcium levels

    • C. 

      Water retention

    • D. 

      Increase in thyroid hormone level

  • 6. 
    Hormones travel through the blood stream and bind to receptors located on target cells. Which of the following would NOT bind to transmembrane proteins on the target cells?
    • A. 

      Estrogen

    • B. 

      Prolactin

    • C. 

      Insulin

    • D. 

      Antidiuretic Hormone

  • 7. 
    Which of the following hormones would be expected to increase if you were studying all day for a test and skipped breakfast and lunch?
    • A. 

      Glucagon

    • B. 

      Growth Hormone

    • C. 

      Insulin

    • D. 

      Calcitonin

  • 8. 
    Which hormone increases basal metabolic rate in the body?
    • A. 

      Thyroid Hormone

    • B. 

      Parathyroid Hormone

    • C. 

      Secretin

    • D. 

      Glucagon

  • 9. 
    Growth factors and histamine are chemical agents released in small amounts that act locally on neighboring cells. Which of the following best describes the function of growth factors and histamine?
    • A. 

      Endocrine function

    • B. 

      Autocrine function

    • C. 

      Paracrine function

    • D. 

      None of the above

  • 10. 
    Which of the following is both an endocrine and exocrine gland?
    • A. 

      Thyroid Gland

    • B. 

      Adrenal Glands

    • C. 

      Parathyroid Glands

    • D. 

      Liver

  • 11. 
    The primary role of the parathyroid gland is:
    • A. 

      To maintain metabolic homeostasis

    • B. 

      To regulate serum calcium levels

    • C. 

      To send hormonal signals to other endocrine organs

    • D. 

      To receive hormonal signals from the hypothalamus

  • 12. 
    Antibodies directed against pancreatic cells result in these cells’ destruction. What laboratory abnormality might be seen in this scenario?
    • A. 

      Depressed serum calcium

    • B. 

      Elevated serum glucose

    • C. 

      Depressed serum sodium

    • D. 

      Elevated serum calcium

  • 13. 
    Each hormone’s organ specificity is determined by:
    • A. 

      Whether it is a corticosteroid or a gonadotropic hormone

    • B. 

      Its ability to interact with a specific receptor

    • C. 

      The signaling cascade it initiates

    • D. 

      Whether it is lipophilic or lipophobic

  • 14. 
    Hormones secreted by the hypothalamus would be classified as:
    • A. 

      Intracrine

    • B. 

      Autocrine

    • C. 

      Paracrine

    • D. 

      Endocrine

  • 15. 
    All of the following are true of posterior pituitary hormones EXCEPT:
    • A. 

      They include direct and tropic hormones

    • B. 

      They are released from the posterior pituitary

    • C. 

      A nerve signal from the hypothalamus stimulates their release

    • D. 

      They include antidiuretic hormone and oxytocin

  • 16. 
    The concentration of hormones in the bloodstream is regulated by:
    • A. 

      Production of receptor antagonists

    • B. 

      Indirect growth-promoting effects

    • C. 

      Nutritional signals to the endocrine gland

    • D. 

      Positive and negative feedback loops

  • 17. 
    Unlike polypeptide hormones, steroid hormones:
    • A. 

      Demonstrate rapid onset of effect

    • B. 

      Are more likely to have an associated receptor in the cytosol or nucleus

    • C. 

      More commonly function via specific second messengers

    • D. 

      Are more rapidly degraded and therefore demonstrate more temporary effects

  • 18. 
    The role of adenylate cyclase is:
    • A. 

      To degrade steroid hormones, terminating their function

    • B. 

      To activate G protein-coupled receptors via phosphorylation

    • C. 

      To aid in signal amplification via conversion of GTP to GDP

    • D. 

      To cyclize ATP in order to generate second messengers

  • 19. 
    Biosynthesis of steroids begins with:
    • A. 

      Methylation of a sesquiterpene

    • B. 

      Binding of pyrophosphate to a terpene

    • C. 

      Generation of a sterol

    • D. 

      Binding of two terpene groups

  • 20. 
    Steroid hormones include which of the following:
    • A. 

      Thyroid hormones and adrenal cortical hormones

    • B. 

      Pancreatic and thyroid hormones

    • C. 

      Sex hormones and adrenal medullary hormones

    • D. 

      Sex hormones and adrenal cortical hormones

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