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BIOL 373 Final questions with complete solutions
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BIOL 373 Final questions with complete solutions
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BIOL 373 FinalAcinar cells of the pancreas secrete proteins into a duct that empties into the lumen of the small
intestine. These proteins would be considered ...
Question options:
a)
neurotransmitters
b)
exocrine secretions
c)
hormones
d)
neurohormones
e)
paracrine factors - correct answer ✔✔b)
exocrine secretions
Oxytocin, a peptide, is released by neuron terminals in the posterior pituitary gland. It enters the
bloodstream and acts on uterine smooth muscle. In this context, this substance could be referred to as
a ...
Question options:
a)
hormone
b)
neurotransmitter
c)
neurohormone
d)
a and c
,e)
a, b and c - correct answer ✔✔d)
a and c
Assuming constant release from the testes, effects of endogenous testosterone would be increased by ...
Question options:
a)
increased expression of androgen receptors by target cells
b)
administration of an androgen antagonist
c)
increased excretion of androgens into urine and feces
d)
a and c
e)
a, b and c - correct answer ✔✔a)
increased expression of androgen receptors by target cells
Endocrine cells producing large amounts of a peptide hormone would be characterized by ...
Question options:
a)
extensive rough endoplasmic reticulum
b)
vesicles containing their hormone product near the plasma membrane
c)
extensive smooth endoplasmic reticulum
d)
a and b
e)
, b and c - correct answer ✔✔d)
a and b
The genomic mechanism of action for steroids would include ...
Question options:
a)
opening of ion channels
b)
driving transcription of particular genes leading to synthesis of proteins
c)
activation of intracellular kinase cascades
d)
a and c
e)
any of the above, depending on the hormone. - correct answer ✔✔b)
driving transcription of particular genes leading to synthesis of proteins
In the endocrine reflex in which plasma K+ concentrations are regulated by aldosterone, what structure
or cell type serves as the integrating centre?
Question options:
a)
The region in the cerebral cortex responsible for ion homeostasis
b)
A region in the hypothalamus
c)
A region in the brainstem
d)
The adrenal medulla
e)
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