BIOL 373 Unit 5 Quiz - Endocrine
Acinar cells of the pancreas secrete proteins into a duct that empties into the lumen of the small
intestine. These proteins would be considered ...
a) paracrine factors
b) exocrine secretions
c) neurotransmitters
d) neurohormones
e) hormones - 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 ...
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 ...
a) increased expression of androgen receptors by target cells
b) administration of an androgen antagonist
c) decreased excretion of androgens into urine and feces
d) a and c
e) a, b and c - correct answer ✔✔d) a and c
Endocrine cells producing large amounts of a peptide hormone would be characterized by ...
a) extensive rough endoplasmic reticulum
b) vesicles containing their hormone product near the plasma membrane
Acinar cells of the pancreas secrete proteins into a duct that empties into the lumen of the small
intestine. These proteins would be considered ...
a) paracrine factors
b) exocrine secretions
c) neurotransmitters
d) neurohormones
e) hormones - 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 ...
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 ...
a) increased expression of androgen receptors by target cells
b) administration of an androgen antagonist
c) decreased excretion of androgens into urine and feces
d) a and c
e) a, b and c - correct answer ✔✔d) a and c
Endocrine cells producing large amounts of a peptide hormone would be characterized by ...
a) extensive rough endoplasmic reticulum
b) vesicles containing their hormone product near the plasma membrane
