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End of Chapter Quiz
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1
One advantage chemical signaling has over nervous signaling is that
A)reaction to stimuli can happen very quickly.
B)although it takes large amounts of chemicals, the chemical signals are efficient.
C)chemical signals stick around longer than nervous signals and can be used for slow processes.
D)chemical signals are used in reaction to external and internal stimuli.
2
A coordination center for some of the endocrine system is the
A)hypothalamus.
B)adrenal gland.
C)thyroid gland.
D)pancreas.
3
Hormones are very similar to neurotransmitters and antibodies because they
A)all fit into receptors specifically shaped for them.
B)are all proteins.
C)appear in response to a signal from the brain.
D)All of the above.
4
The action of steroid hormones is different from peptide hormones because
A)peptide hormones must enter the cell to begin action, while steroid hormones must begin action on the external surface of the cell membrane.
B)steroid hormones must enter the cell to begin action, while peptide hormones must begin action on the external surface of the cell membrane.
C)peptide hormones produce a hormone receptor complex that works directly on the DNA, while steroid hormones cause the release of a secondary messenger which triggers enzymes.
D)No answer is correct.
5
Regulation of kidney function is done by the
A)thyroid gland.
B)thymus.
C)anterior pituitary gland.
D)posterior pituitary gland.
6
______________ is the hormone that stimulates the adrenal gland to produce a number of steroid hormones.
A)ACTH
B)LH
C)TSH
D)MSH
7
Type I diabetes is caused by an abnormality in endocrine cells of the
A)pancreas.
B)thymus.
C)adrenal glands.
D)hypothalamus.
8
The release of thyroid hormone calcitonin is triggered by
A)too much glucose in the blood.
B)too much sodium in the blood.
C)too much calcium in the blood.
D)too little calcium in the blood.
9
Epinephrine mimics the effects of the
A)autonomic nervous system.
B)central nervous system.
C)parasympathetic nervous system.
D)sympathetic nervous system.
10
A person afflicted with acromegaly, a form of giantism, has too much
A)GH.
B)GnRH.
C)oxytocin.
D)thyroxine.





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