Questões de Vestibular Sobre inglês
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Henry Lester, professor of biology at Caltech, discusses the effects of nicotine addiction on the brain.
Tobacco originated in the Americas, where humans have known some of its effects for at least 10,000 years. Beginning some 500 years ago, ocean crossings spread tobacco use to all other continents. We are essentially the only species that has learned how to use small amounts of plant toxins — which provide the selective advantage of sickening or poisoning animals who might eat them — for our own purposes. For tobacco, that toxin is nicotine. In addition to their historical medicinal and ritual uses, these substances, over time, have come to serve as guides, models, and touchstones for learning about the brain and opening many fields of neuroscience.
We have learned from tobacco and nicotine that it is possible to isolate single chemicals from plants that cause toxic effects on herbivores and valued effects on people. We’ve learned that it’s possible to define chemical processes in the human brain that are activated, inhibited, or otherwise manipulated by those substances.
Available at: https://scienceexchange.caltech.edu/topics/neuroscience/neuroscience-experts/nicotine-addictionneuroscience-henry-lester#what-happens-in-the-brain-when-people-smoke. Accessed on: Aug 1st, 2025.
According to the text, what is one of the main discoveries made from the study of tobacco and nicotine?
INSTRUCTION: Read the following text to answer the question.
Abstract
Rare diseases are diseases that affect fewer than 1 in 2,000 people. Due to their rarity, it can be extremely challenging for doctors to diagnose these diseases in their patients — it often takes 6 – 8 years for some patients to get a diagnosis. Even though they are uncommon, rare diseases still have a significant impact on families and communities and need greater attention. Fatal familial insomnia (FFI) is a rare disease that affects the brain and gradually reduces a person’s ability to sleep. FFI gets worse over time and causes severe complications. There is currently no cure for FFI, so more research is crucial — not only for understanding FFI but also for unlocking potential treatments for other rare diseases. Rare disease research brings hope for a better future to those living with FFI and other rare conditions.
Available at: https://kids.frontiersin.org/articles/10.3389/frym.2025.1523273. Accessed on: Aug 2nd, 2025.
INSTRUCTION: Read the following text to answer the question.
Abstract
Rare diseases are diseases that affect fewer than 1 in 2,000 people. Due to their rarity, it can be extremely challenging for doctors to diagnose these diseases in their patients — it often takes 6 – 8 years for some patients to get a diagnosis. Even though they are uncommon, rare diseases still have a significant impact on families and communities and need greater attention. Fatal familial insomnia (FFI) is a rare disease that affects the brain and gradually reduces a person’s ability to sleep. FFI gets worse over time and causes severe complications. There is currently no cure for FFI, so more research is crucial — not only for understanding FFI but also for unlocking potential treatments for other rare diseases. Rare disease research brings hope for a better future to those living with FFI and other rare conditions.
Available at: https://kids.frontiersin.org/articles/10.3389/frym.2025.1523273. Accessed on: Aug 2nd, 2025.
What does the doctor want the patient to do?
What is the main purpose of the volunteer cuddler program at Rush University Medical Center?
Text for question

Internet: <https://www.invent.org/inductees/alexander-grahambell> (adapted).