The _____________________ of a hormone is the time that it takes for the initial concentration to fall of 1/2 of the initial value.
___________________________ refers to when the full activation of a hormone requires the presence of a second hormone.
A _______________ hormone is a hormone that controls the secretion of another hormone.
____________________ occurs when the interaction of two hormones produces a response that is greater that the sum of the effects of the two hormones individually.
________________________ occurs when a hormone opposes the actions of another hormone.
A ________________ curve is a plot that illustrates how a hormone response changes with varying concentrations of the hormone.
_________________ refers to the concentration of the hormone that produces a half-maximal response.
If there is a decreased sensitivity to a hormone, the dose-response curve will shift to the _____________.
If the dose-response curve of a hormone shifts to the left, this indicates ______________ sensitivity to the hormone.
Amine hormones are derived from the amino acid ______________________.
The hormone melatonin is derived from the amino acid ______________________.
Steroid hormones are derived from __________________________ by a series of enzymatic reactions.
The thyroid hormones and catecholamines are examples of _______________ hormones.
Insulin, parathyroid hormone, and glucagon are examples of _______________ hormones.
Testosterone, estrogen, cortisol, and aldosterone are examples of _______________ hormones.
A _____________________ allows for the measurement of hormone concentrations in the blood using antibodies specific to the hormone.
Pulsatile secretion of hormones is regulated by regular oscillatory cycles that originate in the ____________________________________.
The protein products of the genes dclock and cycle activate transcription of the genes timeless and _____________.
The protein products of the genes dclock and cycle activate transcription of the genes period and _____________.
A heterodimer formed from the gene products of the genes ______________ and period enters the nucleus at night and inhibits expression of the genes dclock and cycle .