Final answer:
Excess cholesterol can form gallstones in the gallbladder. Drugs like statins inhibit cholesterol synthesis to reduce cholesterol levels in the body.
Step-by-step explanation:
Excess cholesterol is released from the liver and transported to the gallbladder, where it stays in solution until being secreted into the intestine as bile. Cholesterol can precipitate in the gallbladder and form gallstones. Drugs like statins reduce cholesterol levels by inhibiting the enzyme HMG-CoA reductase, which synthesizes cholesterol from lipids in the body.