A team of researchers is investigating the effects of anewchemotherapy drugon the growth of tumors. They find three patientsto participate in the experiment. Patient oneis 24 years old, one is 25 years old, and one is 82 years old. The team provides 1 week of chemotherapy to the 24-year-old, 3 days of chemotherapy to the 25-year-old, and 4 weeks of chemotherapy to the 82-year-old. They then collecteddata on tumorgrowth in each patientimmediately after the first day of chemotherapy. They found that the tumors did not grow from the initial measurementsprior to chemotherapy. Based on this theteam concludes that the new chemotherapy drug is very effective

experiment-a treatment was given to the patients [fish oil or placebo]

                           UwU

it provides an alternative energy pathway for the reaction to proceed.

a catalyst is a substance that speeds up the rate of a chemical reaction but is not consumed during the course of the reaction.

catalysts increase the rate of reaction without being used up. they do this by lowering the activation energy needed. with a catalyst, more collisions result in a reaction, so the rate of reaction increases. different reactions need different catalysts.

a catalyst works by providing an alternative reaction pathway to the reaction product. the rate of the reaction is increased as this alternative route has a lower activation energy than the reaction route not mediated by the catalyst.