As a General Rule, the Magnitude of a Target Cell's

Multiple Choice

As a general rule, the magnitude of a target cell's response to a chemical messenger depends on which three factors?

A) (1) the concentration of the messenger, (2) the percent saturation of the receptor, and (3) the specificity of the receptor for the chemical messenger
B) (1) the solubility of the chemical messenger, (2) the location of the receptor, and (3) the class of the receptor
C) (1) the concentration of the messenger, (2) the number of receptors, and (3) the affinity of the receptor for the messenger
D) (1) the solubility of the chemical messenger, (2) the location of the receptor, and (3) the affinity of the receptor to the messenger
E) (1) the half life of the messenger, (2) the number of receptors, and (3) the percent saturation of those receptors