Chronic exposure to a ligand (messenger) the receptor population for that chemical messenger on the target cell.
A) changes the conformation of
B) decreases the affinity of
C) decreases the specificity of
D) down regulates
E) upregulates
Correct Answer:
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Q31: Eicosanoids are derived from what phospholipid?
A)leukotrienes
B)thromboxanes
C)prostacycline
D)arachidonic acid
E)prostoglandins
Q32: A(n)is transported in the bloodstream.
A)paracrine
B)glial cell
C)neurotransmitter
D)autocrine
E)hormone
Q33: In order to synthesize eicosanoids, _ catalyzes
Q34: When associated with G protein, guanylate cyclase
Q35: The chemical messenger of the nervous system
Q37: Which of the following ions binds to
Q38: What molecules are hydrophobic and can easily
Q39: Which of the following statements is true
Q40: Steroid messengers are derived from what precursor
Q41: What chemical messenger diffuses to neighboring cells
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