1. A tumour is excessive growth of cells. The higher number of cells affected often results in a over-secretion by a gland. If a tumour occurred in the adrenal medulla, a hypersecretion of epinephrine occurs. Possible symptoms of the tumour include
a) decreased heart rate, decreased blood sugar, decreased metabolic rate
b) decreased heart rate, increased blood sugar, increased metabolic rate
c) increased heart rate, decreased blood sugar, decreased metabolic rate
d) increased heart rate, increased blood sugar, increased metabolic rate
2. A characteristic symptom of hyperthyroidism, a disorder of the thyroid gland, is
a) intolerance to cold
b) weight loss
c) slowed mental processes
d) lethargy
3. Which of the following hormones has a role in returning the salt concentration in the blood to homeostatic levels following heavy exercise?
a) Thyroxine
b) Epinephrine
c) Cortisol
d) Aldosterone
4.Premature infants born at 24 weeks gestation face a wide spectrum of physiological problems . The problems arise because, prior to the third trimester of pregnancy, fetuses
a) depend upon amniotic fluid for nutrients
b) have not yet begun cell specialization
c) have organs that are underdeveloped
d) depend upon amniotic fluid for oxygen
5. In humans, high levels of GnRF cause the pituitary to release
a) estrogen and progesterone
b) progesterone and FSH
c) LH and FSH
d) LH and estrogen
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