front 1 Which of the following is NOT a major endocrine organ, but produces hormones in addition to its major function? A)kidneys B)pancreas C)thymus D)pituitary | back 1 A |
front 2 Steroid hormones influence cellular activities by __________. activating G proteins A)using calcium ions as a second messenger B)activating cyclic AMP located inside the cell C)binding to DNA and forming a gene-hormone complex D)activating cyclic AMP located outside the cell | back 2 C |
front 3 Sympathetic nerve stimuli are responsible for the release of __________. A)estrogen B)insulin C)thyroid hormone D)epinephrine E)aldosterone | back 3 D |
front 4 The chemical classification of hormones does NOT include __________. A)steroid hormones B)amino acid-based hormones C)protein-based hormones D)cholesterol-containing hormones E)glucose-containing hormones | back 4 E |
front 5 The metabolic rate of most body tissues is controlled directly by __________. A)FSH B)TSH C)ACTH D)TH E)ADH | back 5 D |
front 6 The secretion of parathyroid hormone is a good example of __________. A)hormonal stimuli B)pituitary gland stimuli C)hypothalamic stimuli D)humoral stimuli E)neural stimuli | back 6 D |
front 7 The stimulus for producing insulin is __________. A) low blood glucose concentration B) low blood amino acid concentration C) low blood fatty acid concentration D) low glycogen concentration E) high blood glucose concentration | back 7 E |
front 8 The transcription of new messenger RNA is a function of __________. A) pancreatic hormones B) catecholamines C) pituitary gland hormones D) posterior pituitary hormones E) steroid hormones | back 8 E |
front 9 Which of the following elements is required for the synthesis of thyroid hormone? A) iron B) sulfur C) copper D) zinc E) iodine | back 9 E |
front 10 The hypophyseal portal system transports releasing and inhibiting hormones from the hypothalamus to the __________. A)parathyroid glands B)adrenal glands C)thyroid gland D)ovaries E)anterior pituitary gland (adenohypophysis) | back 10 E |
front 11 Which of the following signals would affect local cells by releasing chemicals into the extracellular fluid? A)autocrine B)neural C)endocrine D)paracrine | back 11 D |
front 12 Which of the following is the property in which a hormone CANNOT exhibit its full effect without another hormone? A)permissiveness B)assertiveness C)antagonism D)synergism | back 12 A |
front 13 Which of the following is NOT synthesized in the pituitary gland? A)TSH B)ADH C)LH D)PRL E)FSH | back 13 B |
front 14 Which of the following organs is considered a neuroendocrine organ? A) adrenal cortex B)pituitary C)hypothalamus D)pancreas | back 14 C |
front 15 Eicosanoids are not true hormones because they __________. A)don't have target organs b)mediate inflammatory reactions c)they act locally, not on distal organs as do true hormones d)are lipid in nature | back 15 C |
front 16 How do protein kinases affect enzymes? A)They increase the secretion of an enzyme. b)They increase the release of an enzyme. c)They add a phosphate group (phosphorylation) to the enzyme. D)They break down the enzyme. | back 16 C |
front 17 The "hormone response element" is located on the cell __________. a) RNA b)enzymes c)membrane d)DNA | back 17 d |
front 18 The binding of a steroid hormone to its receptor would lead to the __________. a) direct activation of enzymes in the cell b)direct activation of second-messenger agents in the cell c)transcription of the DNA for the gene that is "turned on" by this event d) formation of cAMP | back 18 c |
front 19 Water-soluble hormones exhibit the shortest __________. a)molecule b)activation time c)chain of amino acids d)half-life | back 19 d |
front 20 The normal endocrine controls can be directly overridden by the __________ system. a)reproductive b)nervous c)circulatory d)digestive | back 20 b |
front 21 Pro-opiomelanocortin (POMC) is a prohormone for __________. a)thyroxin b)growth hormone C)insulin d)ACTH | back 21 d |
front 22 Excess growth hormone would cause all the following EXCEPT __________. a)suppression of cancer b)giantism in children c)diabetes d)acromegally in adults | back 22 a |
front 23 Hypersecretion of antidiuretic hormone (ADH) can occur in all of the following situations EXCEPT __________. a)after general anesthesia b)ectopic ADH secretion by pulmonary cancer c)after neurosurgery d)damage to the pineal gland | back 23 d |
front 24 Iodination of thyroid hormones is mediated by __________. a)peroxidase enzymes b)the Golgi apparatus c)lysosomes in the cell d)colloid endocytosis | back 24 a |
front 25 A congenital condition that includes mental retardation, short disproportional body size, and a thick tongue and neck is caused by __________. a)deficiency of thymosin b)excess of synthetic growth hormone c)deficiency of thyroxin d)insulin deficiency | back 25 c |
front 26 Osteitis fibrosa cystica is caused by __________. a)an increase in calcitonin b)an increase in ADH c)an increase in the parathyroid hormone d)an increase in the growth hormone in an adult | back 26 c |
front 27 Insulin enhances the membrane transport of glucose in all of the following tissues EXCEPT __________. a)skeletal muscle b) the myocardium c)the brain d) adipose tissue | back 27 c |
front 28 Resistin, an insulin antagonist, is a hormone produced by the __________. a)heart b)hypothalamus c)adipose tissue d)liver | back 28 c |
front 29 Which of the following hormones does the skin produce? a)erythropoietin b)melatonin c)cholecalciferol d)renin | back 29 c |
front 30 Somatostatin secreted by the pancreas is considered paracrine because it acts on __________. a)the cells that secrete it b)cells other than those that secrete it c)distant target organs d)the hypothalamus to inhibit or activate the secretion of other hormones | back 30 b |