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Question 7 1 pts Which one of the following statements regarding the excretion of drugs by the kidneys is correct? Water-soluble compounds tend to undergo tubular reabsorption. Tubular reabsorption of warfarin is less effective if sodium bicarbonate is given. Glomerular filtration is an effective process to eliminate drugs bound to plasma protein. O If Drug A inhibits the tubular secretion of Drug B, the plasma concentration of Drug B decreases. Question 8 1 pts Which one of the following would not be a plausible consequence of a polymorphism in the promoter region of a gene encoding a receptor? An endogenous agonist has reduced ability to activate a cell expressing the receptor. O The expression of the receptor is increased. O The expression of the receptor is decreased. The structure of the receptor is altered