Answer Happy

Which of the following mechanisms is (are) used
to terminate hormone signaling?
a)
Up-regulate hormone receptor levels in target cells via
exocytosis of the hormone-receptor complex
b)
Excrete hormones in bile and urine
c)
Degrade hormones in circulation by enzymes in the liver and
kidneys
d)
Reduce hormone secretion
Which of the following
about catecholamines is FALSE?
a)
They have shorter half-life than steroids.
b)
They act on the receptors located on the plasma membrane of
target cells.
c)
They are derived from tyrosine.
d)
They are neurohormones.
e)
They are transported through the blood by being bound to carrier
proteins.
Hypothalamic
releasing hormones and inhibiting hormones
a)
are all neurohormones.
b)
are secreted from the posterior pituitary.
c)
control the secretion of oxytocin and ADH
d)
travel through the hypothalamohypophysial tract.
e)
influence the release of hormones from the posterior
pituitary.