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Question: A small molecule binds to a G protein, preventing its activation. What direct effect will this have on signaling that involves cAMP?
Choices:
The hormone will not be able to bind to the hormone receptor.
Adenylyl cyclase will not be activated.
Excessive quantities of cAMP will be produced.
The phosphorylation cascade will be initiated.
Question: The hypothalamus is functionally and anatomically connected to the posterior pituitary lobe by a bridge of ________.
Choices:
blood vessels
nerve axons
cartilage
bone
Question: A student is in a car accident, and although not hurt, immediately experiences pupil dilation, increased heart rate, and rapid breathing. What type of endocrine system stimulus did the student receive?
Choices:
humoral
hormonal
neural
positive feedback
Question: Which of the following hormones contributes to the regulation of the body's fluid and electrolyte balance?
Choices:
adrenocorticotropic hormone
antidiuretic hormone
luteinizing hormone
all of the above
Question: How many hormones are produced by the posterior pituitary?
Choices:
0
1
2
6
Question: A newly developed pesticide has been observed to bind to an intracellular hormone receptor. If ingested, residue from this pesticide could disrupt levels of ________.
Choices:
melatonin
thyroid hormone
growth hormone
insulin
Question: The secretion of thyroid hormones is controlled by ________.
Choices:
TSH from the hypothalamus
TSH from the anterior pituitary
thyroxine from the anterior pituitary
thyroglobulin from the thyroid's parafollicular cells
Question: Chemical signaling that affects neighboring cells is called ________.
Choices:
autocrine
paracrine
endocrine
neuron
Question: Which of the following is an anterior pituitary hormone?
Choices:
ADH
oxytocin
TSH
cortisol
Question: Which of the following statements about the thyroid gland is true?
Choices:
It is located anterior to the trachea and inferior to the larynx.
The parathyroid glands are embedded within it.
It manufactures three hormones.
all of the above
Question: Endocrine glands ________.
Choices:
secrete hormones that travel through a duct to the target organs
release neurotransmitters into the synaptic cleft
secrete chemical messengers that travel in the bloodstream
include sebaceous glands and sweat glands
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