(ENEM 2013 1ª APLICAÇÃO)
National Geographic News
Christine Dell’Amore
Published April 26, 2010
Our bodies produce a small steady amount of natural morphine, a new study suggests. Traces of the chemical are often found in mouse and human urine, leading scientists to wonder whether the drug is being made naturally or being delivered by something the subjects consumed. The new research shows that mice produce the “incredible painkiller” — and that humans and other mammals possess the same chemical road map for making it, said study co-author MeinhartZenk, who studies plant-based pharmaceuticals at the Donald Danforth Plant Science Center in St. Louis, Missouri.
Disponível em: www.nationalgeographic.com. Acesso em: 27 jul. 2010.
Ao ler a matéria publicada na NationalGeographic, para a realização de um trabalho escolar, um estudante descobriu que: