1. In order for a hormone to cause a response, it must first bind to an appropri

Question

1. In order for a hormone to cause a response, it must first bind to an appropriate receptor on its target cell. (Points: 1)
True
False


2. Disorders associated with the endocrine system can be caused by problems with hormone production or lack of receptors for the hormones on the target cells. (Points: 1)
True
False


3. The levels of potassium and sodium in the body are regulated primarily by the hormone aldosterone. (Points: 1)
True
False


4. Nitric oxide is produced by cells lining the blood vessels; this chemical messenger regulates the contraction of smooth muscle in the digestive tract as well as local blood flow in various tissues of the body. (Points: 1)
True
False


5. Uptake of blood glucose by liver cells is stimulated by (Points: 1)
ADH
prolactin
parathyroid hormone
glucagon
insulin


6. Which of the following is true regarding estrogen and progesterone? (Points: 1)
They are secreted by the ovaries.
They are released during a female's reproductive years.
They regulate the menstrual cycle.
They stimulate the development of female secondary sex characteristics.
all of the above


7. Which of the following is not a symptom of diabetes mellitus? (Points: 1)
blurred vision
high sodium concentration in the blood and urine
excessive thirst
tingling in the feet or hands
fatigue


8. Which of the following is required in the diet in order for active thyroid hormones to be produced? (Points: 1)
calcium
phosphorus
iodine
zinc
iron


9. Which of the following nonhormonal chemical messengers is important in local control of blood flow and blood clotting? (Points: 1)
prostaglandins
nerve growth factor
tumor angiogenesis growth factor
histamine
epidermal growth factor


10. If diabetes is left untreated, which of the following could develop as a result? (Points: 1)
neural disorders
kidney failure
blindness
cardiovascular disorders
all of the above


11. The process by which the blastocyst becomes buried within the endometrial lining of the uterus is: (Points: 1)
fertilization.
implantation.
morphogenesis.
differentiation
embryonic development.


12. The placenta forms from embryonic tissue and (Points: 1)
bone marrow
amniotic fluid
embryonic disk
endometrium
yolk sac


13. Which of the following organs is not fully developed in a fetus and is therefore bypassed by the ductus aerteriosus? (Points: 1)
liver
pancreas
heart
lungs
bladder


14. During puberty, the secretion of GnRH causes the secretion of ________, which in turn stimulate(s) the production of sex hormones. (Points: 1)
LH and FSH
oxytocin and prolactin
insulin
growth hormone
oxytocin and growth hormone


15. Research on the aging process shows that wounds of the elderly heal more slowly and that they are more susceptible to disease. These are problems associated with an aging ________ system. (Points: 1)
respiratory
immune
integumentary
digestive
endocrine

________________________________________

Explanation / Answer

1. In order for a hormone to cause a response, it must first bind to an appropriate receptor on its target cell. (Points: 1)
True



2. Disorders associated with the endocrine system can be caused by problems with hormone production or lack of receptors for the hormones on the target cells. (Points: 1)
True



3. The levels of potassium and sodium in the body are regulated primarily by the hormone aldosterone. (Points: 1)
True



4. Nitric oxide is produced by cells lining the blood vessels; this chemical messenger regulates the contraction of smooth muscle in the digestive tract as well as local blood flow in various tissues of the body. (Points: 1)
True



5. Uptake of blood glucose by liver cells is stimulated by (Points: 1)

insulin


6. Which of the following is true regarding estrogen and progesterone? (Points: 1)
They are secreted by the ovaries.
They are released during a female's reproductive years.
They regulate the menstrual cycle.
They stimulate the development of female secondary sex characteristics.
all of the above


7. Which of the following is not a symptom of diabetes mellitus? (Points: 1)
blurred vision
high sodium concentration in the blood and urine
excessive thirst
tingling in the feet or hands
fatigue


8. Which of the following is required in the diet in order for active thyroid hormones to be produced? (Points: 1)


iodine



9. Which of the following nonhormonal chemical messengers is important in local control of blood flow and blood clotting? (Points: 1)

histamine



10. If diabetes is left untreated, which of the following could develop as a result? (Points: 1)
neural disorders
kidney failure
blindness
cardiovascular disorders
all of the above


11. The process by which the blastocyst becomes buried within the endometrial lining of the uterus is: (Points: 1)

implantation.



12. The placenta forms from embryonic tissue and (Points: 1)



yolk sac


13. Which of the following organs is not fully developed in a fetus and is therefore bypassed by the ductus aerteriosus? (Points: 1)

heart



14. During puberty, the secretion of GnRH causes the secretion of ________, which in turn stimulate(s) the production of sex hormones. (Points: 1)

growth hormone



15. Research on the aging process shows that wounds of the elderly heal more slowly and that they are more susceptible to disease. These are problems associated with an aging ________ system. (Points: 1)

immune

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