HW20 - HW20 Q1 Which of the following statements concerning...

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HW20 Q1 Which of the following statements concerning pharmacodynamics is INCORRECT? a. A drug functions as an on/off switch for a biological function. b. A drug and receptor must have regions of complementary structures. c. A drug and receptor must have regions of complementary intermolecular forces. d. Pharmacodynamics is concerned with what the organism does to the drug. Q2 Which of the following statements concerning the drug-receptor complex is INCORRECT? a. An agonist complex turns on the biological function. b. An antagonist complex turns off the biological function. c. A drug that fits and blocks a receptor site from its natural substrate functions as an agonist. d. A drug and the natural substrate compete to occupy the receptor site. Q3 Which of the following statements concerning enzymes is INCORRECT? a. An enzyme lowers the energy of activation and functions as a catalyst for a reaction. b. An enzyme inhibitor raises the energy of activation for a reaction by blocking the active site of the enzyme.
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