Download Multiple Choice Set 4

AnS 214 SI Multiple Choice Set 4
Weeks 3 / 3 - 3 / 5
THIS MC SET IS SHORT, DUE TO THE FACT THAT THIS WEEK ONLY CONTAINED 2 LECTURE PERIODS.
I HIGHLY RECOMMEND THAT YOU SPEND ADDITIONAL PRACTICE TIME ON COMPLETING AND
MEMORIZING THE POSTED HORMONE WORKSHEETS.
1. Endocrine glands
A. use ducts to secrete their products onto a surface or organ lumen
B. exert extracellular effects on molecules outside the cell environment
C. secrete enzymes to alter metabolism of nearby cells
D. secrete hormones that can affect nearby cells or the producing cell itself through autocrine and paracrine effects,
respectively
E. target cell metabolism through intracellular effects
2. All of the following are functions of hormones EXCEPT
A. stimulation of mitosis
B. stimulation of secretory activities
C. protein synthesis
D. alteration of plasma membrane permeability
E. all of the above are correct
3. Which of the following classes are INCORRECTLY matched to the hormones that fall into them?
A. Catecholamines: epinephrine, norepinephrine
B. Iodothyrones: TSH, T3, T4
C. Eicosanoids: PGF2a, leukotrines, thromboxanes
D. Steroids: alsosterone, hydrocortisone, progesterone
E. Peptides and proteins: insulin, prolactin, GH
4. Which of the following is NOT an effect of stimulation of a major hypothalamic-pituitary-[target organ] axis?
A. increase in respiration rate
B. production of IGF
C. ovulation
D. increase in Na retention in the kidneys
E. development of secondary sex characteristics
5. The hypothalamus
A. consists of cell types called gonadotropes, thyrotropes, corticotropes, lactotropes and somatotropes that secrete
pituitary-activating hormones
B. produces the hormones GHRH, PRH, TSH, GnRH
C. makes up the floor of the fourth ventricle of the brain
D.produces the hormones oxytocin and ADH
E. b and d are correct
6. Which of the following hormones is INCORRECTLY matched to its eventual downstream effects?
A. TSH: increasing rates of glycolysis, lypolysis and protein degradation
B. Prolactin: increasing FSH sensitivity in the male to increase production of testosterone
C. Oxytocin: sperm transport and emotional bonding
D. ACTH: increasing blood pressure and water retention
E. IGF: increasing rates of growth and differentiation
7. Growth hormone
A. is also called somatostatin
B. stimulates epiphyseal growth plates in adults
C. is produced in greatest quantities after a high starch meal
D. in conjunction with IGF, positively affects its own production via hypothalamic feedback
E. secretion drops by 75% during adulthood
8. Hormone release
A. is regulated by hypothalamic hormones in the posterior pituitary
B. involves neuroendocrine reflex arcs in the anterior pituitary
C. is an 'is an all or none' effect
D. a and b are correct
E. none of the above are correct
9. Hypersecretion
A. of somatotropin causes dwarfism
B. of TH causes myxedema
C. of PTH causes renal calculi
D. of cortisone causes detrimental protein accumulation and bone thickening
E. of insulin causes glycogen depletion
10. The thyroid gland does all of the following EXCEPT:
A. produces T3 and T4 in follicular cells
B. produces calcitriol in parafollicular cells
C. increases cellular respiration rate
D. exerts hormonal effects on internal cell structures
E. reduces blood blood calcium levels and increases bone buildup
11. T3
A. is synthesized from I- and tyrosine cleaved from thyroglobulin
B. is slightly less biologically active than T4
C. is secreted in response to TRH
D. is mostly soluble in blood plasma
E. a and c are both correct
12. Effects of thyroid hormone
A. are augmented by the intracellular conversion of T3 to T4
B. are mediated through protein kinases activated by membrane binding
C. are a result of the hormone's insolubility in blood plasma
D. include a blocking of Na/K-ATP-ase transcription factors, which causes the observed increse in heat output
E. stimulate the downstream increase in lipid synthesis and adipose deposition
13. Toxic goiter
A. is the result of iodine deficiency in the diet
B. is characterized by too low TH levels
C. can be rectified via dietary supplementation of iodine
D. is also called Graves disease
E. all of the above are correct
14. Blood calcium levels
A. are positively affected by the surgical excision of the parathyroid gland
B. are increased by hormonal secretions of the parathyroid gland
C. are decreased by the products of parafollicular cells in the thymus
D. involves a balance between hormone mediated Ca+2 resorption in kidneys and deposition in bone
E. when low, cause a detrimental decrease in urinary calculi levels
15. Which of the following is TRUE about the adrenal cortex?
A. Innervated by the sympathetic nervous system to produce epinephrine and norepinephrine
B. Figures in the blood pressure increase associated with long-term stress.
C. Consists of modified neurons called Chromaffin cells.
D. Induces the stimulation of the medulla under stress.
E. All of the above are correct
16. Which of the following is FALSE about hormonal epinephrine and norepinephrine?
A. Have longer-lasting effects than neurotransmitter-origin catecholamines.
B. Are produced by the adrenal medulla.
C. Have much higher circulation of norepinephrine than epinephrine.
D. Have the effect of increasing vasodilation under stress to facilitate cooling of muscles
E. Aggravate asthma due to bronchoconstrictive functions.
17. In the adrenal glands
A. the zona glomerulosa is primarily concerned with water balance.
B. neural stimulation causes the release of growth hormone, which induces muscle catabolism
C. chronic secretions agravate gradual immune hyperactivity
D. the zona fasciculata is primarily concerned with stress response.
E. a and d are correct
18. The short-term stress responses include
A. compromised digestive function
B. decreased urine output
C. changes in blood flow patterns
D. a and b are correct
E. all of the above are correct
19. Adrenal hyporsecretions
A. are associated with Cushing syndrome in many species
B. are correlated to an increase in size of external genitalia during development
C. cause women to speak in lower pitches, and exhibit clitoral hypertrophy
D. b and c only
E. none of the above are correct