Biology, Eighth Edition (Raven)

Chapter 46: The Endocrine System

Pre Test

1
Hormones have the following property(ies): (p .921)
A)they are highly reactive molecules.
B)they are relatively complex molecules.
C)they are quite stable molecules.
D)they are very large molecules.
E)both b and c
2
True or False: Lipophilic hormones generally work faster than hydrophilic hormones because they pass through the cell membrane and work directly in the cell. (p. 927)
A)True
B)False
3
Antidiuretic hormone (ADH) is secreted by the posterior pituitary and stimulates water reabsorption by the kidneys. What happens if you become dehydrated? (p. 929)
A)More ADH is secreted.
B)Less ADH is secreted.
C)Your urine will become less concentrated.
D)Diuretic hormone will be secreted.
E)both a and c
4
A person who exhibits weight loss, nervousness and overheating, may be suffering from: (p. 934)
A)hypothyroidism.
B)diabetes.
C)cretinism.
D)hyperthyroidism.
E)both a and c
5
True or False: Hormones are only produced by endocrine glands. (p. 939)
A)True
B)False
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