Multiple choice Which of the following pairs is correctly matched? Alitame: Enzyme Chloramphenicol: Natural antimicrobial agent Thyroxine: Iodine containing hormone Omeprazole: Food preservative Ranitidine: Antifertility drug Reveal answer Fill a bubble to check yourself C Correct answer Explanation Thyroxine is an iodine containing hormone secreted by the thyroid gland that increases the rate of cell metabolism and regulates growth.