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LIFS241 Exercise 4
1. In which of the following events, are the chemical messengers transported by the
blood?
A. endocrine
B. paracrine
C. autocrine
D. synaptic communication
2.
A.
B.
C.
D.
Hormones fall into the following chemical classes except ____.
steroids
biogenic amines
fatty acids
peptides
3.
A.
B.
C.
Which of the following hormone classes has their receptors located in the nucleus?
steroid hormones
peptide hormones
biogenic amine hormones (except thyroid hormones)
4.
A.
B.
C.
Which of the following hormone classes stimulates synthesis of new proteins?
steroid hormones
peptide hormones
biogenic amine hormones (except thyroid hormones)
5. Long-term exposure to high levels of a hormone causes ____ in the number of
receptors and sensitivity to the hormone
A. a decrease
B. an increase
C. no change
6. Which of the following statements is correct?
A. Most hormones remain active for several hours after being released into the blood.
B. About 50% of most hormones are deactivated a couple of minutes after being
released into the blood.
C. Hormones are primarily deactivated in muscles.
7.
A.
B.
C.
D.
Which of the following hormones is not secreted by pituitary?
luteinizing hormone (LH)
thyrotropin releasing hormone (TRH)
adrenocorticotropic hormone (ACTH)
growth hormone (GH)
8. Which of the following hormones is synthesized in hypothalamus and secreted from
pituitary?
A. antidiuretic hormone
B. prolactin
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LIFS241 Exercise 4
C. follicle-stimulating hormone
D. growth hormone
9.
A.
B.
C.
D.
Which of the following hormones stimulates gluconeogenesis ?
insulin
vasopressin
glucagon
gastrin
10. Which of the following hormones has the strongest stimulatory effect on metabolic
rate or heat production?
A. thyroid hormone
B. ADH
C. Aldosterone
D. oxytocin
11. Which of the hormone stimulates uterine labor contractions?
A. thyroid hormone
B. ADH
C. Aldosterone
D. oxytocin
12. Adrenal medulla secrets ____.
A. catecholamines
B. glucocorticoids
C. aldosterone
D. androgen
KEY
1A
10A
2C
11D
3A
12A
4A
5A
6B
7B
2
8A
9C