In one kind of second-messenger system
A) A small amount of one hormone (the second messenger) is required to release another.
B) A tropic hormone (the first messenger) stimulates secretion of another hormone (the second messenger) .
C) The hormone first binds to a specific surface receptor, whereupon the hormone-receptor complex moves into the cell to combine with a specific intracellular receptor.
D) Releasing hormones (the first messenger) from the hypothalamus regulate many anterior pituitary hormones (the second messenger) .
E) A hormone (the first messenger) binds to surface receptors activating adenylate cyclase, catalyzing cAMP formation.
Correct Answer:
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Q26: The most common second messenger used by
Q28: Lipophilic hormones must interact with which of
Q30: The effective plasma concentration of a hormone
Q30: Select the correct statement about TSH.
A)A buildup
Q31: Which of the following is least associated
Q32: Which class of hormones triggers the synthesis
Q34: Lipophilic hormones
A) include steroids and thyroid hormone
B)
Q35: Diurnal rhythms
A) are inherent cyclical peaks and
Q36: Steroids
A) are lipophilic
B) are derived from cholesterol
C)
Q38: Select the incorrect statement.
A) Adenyl cyclase forms
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