Questões do ENEM 2015

Questões aplicadas na prova de 2015, cada uma em página própria com enunciado, alternativas e gabarito.

Resultados

3.347 questões encontradas. Mostrando a página 12 de 168.

  • 421CE7BD-F7

    Física

    Força Gravitacional e Satélites
    UNEMAT · 2015MédioEntre para guardar nos favoritos
    Diversas empresas vêm anunciando que esta será a década da implantação do turismo espacial, o qual deve ser inaugurado em 2014, tanto que, neste ano, pela primeira vez, uma nave comercial atingiu a estratosfera ao chegar a 25 mil metros de altura e rompeu a barreira do som. Mas, o que mais impressionou foi a passagem do vácuo para a atmosfera: com um sistema de desaceleração, o veículo concluiu em temperaturas espantosamente baixas a fase crítica do voo. Em voos de 2,5 horas valerão, para os futuros turistas, cinco minutos de gravidade zero.

    Disponível em: http://www.brasilturismo.blog.br/turismoespacial-voos-ocorrerao-antes-de-2013-pela-empresa-deturismo-virgin-galactic.html. (adaptado) Acesso em: 31 out. 2013.

    A respeito do assunto, assinale a alternativa correta.
    Escolha uma alternativa para a questão 421ce7bd-f7
  • 4219F708-F7

    Atualidades

    Atualidades do ano de 1994 ao ano de 2013
    UNEMAT · 2015FácilEntre para guardar nos favoritos
    Morreu em 8 de abril de 2013, aos 87 anos, após sofrer um derrame (AVC), a ex-chefe de governo do Reino Unido, Margaret Thatcher, uma personalidade de enorme projeção mundial. Thatcher teve grande influência não só no Reino Unido, onde mudou o rumo da política, mas também em alguns dos grandes acontecimentos mundiais do final do século XX.

    Disponível em: http://g1.globo.com/jornal-daglobo/noticia/2013/04/margaret-thatcher-morre-aos-87- anos.html. (adaptado)

    Sobre o AVC que matou a ex-Chefe de Estado, marque a alternativa certa.
    Escolha uma alternativa para a questão 4219f708-f7
  • 42170871-F7

    Biologia

    Ecologia e ciências ambientais
    UNEMAT · 2015Muito fácilEntre para guardar nos favoritos
    Ao longo da história da vida na Terra, diferentes organismos traçaram caminhos evolutivos paralelos, estreitando relações de convivência e colaboração. A isso damos o nome de mutualismo.

    Assinale a alternativa que não representa uma associação mutualística.
    Escolha uma alternativa para a questão 42170871-f7
  • 4213F12C-F7

    Biologia

    Drogas
    UNEMAT · 2015MédioEntre para guardar nos favoritos
    Um problema crescente no Brasil, inclusive em cidades interioranas, é a dependência química do crack. O crack é um subproduto do processamento da cocaína que afeta o sistema nervoso central.

    Sobre o crack, marque a alternativa correta.
    Escolha uma alternativa para a questão 4213f12c-f7
  • 42102201-F7

    Biologia

    Hereditariedade e diversidade da vida
    UNEMAT · 2015FácilEntre para guardar nos favoritos
    O mundo seria muito mais simples se todas as características dos organismos se restringissem às dominantes ou recessivas. No entanto, ele é muito mais rico em variações e estados intermediários. Em 1905, o geneticista William Bateson e colaboradores descobriram a segregação independente de pares de alelos que codificam a forma da crista nas galinhas. Eles descreveram quatro fenótipos de crista e os alelos relacionados a eles: rosa (R), ervilha (E), noz (ER) e simples (eerr).

    A partir do exposto acima, assinale a alternativa correta.
    Escolha uma alternativa para a questão 42102201-f7
  • 420C8F31-F7

    Biologia

    Ecologia e ciências ambientais
    UNEMAT · 2015FácilEntre para guardar nos favoritos
    Ironicamente, a solução para o aquecimento global pode estar em uma bactéria que adora calor, Pyrococcus furiosus, que vive dentro de vulcões submarinos em que a temperatura chega a 100 °C. Em uma experiência feita pela Universidade da Geórgia, nos EUA, esse microrganismo recebeu cinco genes de outra bactéria subaquática, a Metallosphaera sedula. Dessa combinação surgiu um organismo capaz de algo muito útil: alimentar-se de CO2.

    Disponível em: http://super.abril.com.br/ciencia/cientistascriam-bacteria-come-co2-ar-748325.shtml. Acesso em: 30 set. 2014.

    Sobre o texto acima, é correto afirmar que:
    Escolha uma alternativa para a questão 420c8f31-f7
  • 7C9C9DC3-F6

    Física

    Cargas Elétricas e Eletrização
    Universidade Nove de Julho – UNINOVE · 2015FácilEntre para guardar nos favoritos
    A lâmpada de 40 W de uma luminária de emergência acende-se automaticamente quando ocorre uma interrupção do fornecimento de energia elétrica. Quando suas baterias estão completamente carregadas, a luminária tem autonomia de 5 horas. Enquanto a lâmpada está acesa, o circuito eletrônico ao qual ela está ligada dissipa 4000 J por hora.

    De acordo com as informações, a energia elétrica armazenada nas baterias, quando estão com carga máxima, é, em kJ, igual a
    Escolha uma alternativa para a questão 7c9c9dc3-f6
  • 7C963B70-F6

    Física

    Óptica Geométrica
    Universidade Nove de Julho – UNINOVE · 2015MédioEntre para guardar nos favoritos

    Duas paredes adjacentes e ortogonais de um elevador são totalmente revestidas por espelhos planos E1 e E2 . Ao adentrar o elevador, um passageiro P se posiciona equidistante às duas paredes.


    Imagem da questão de Física, da prova de 2015


    Levando-se em conta que a imagem de um espelho se torna objeto para o outro espelho e vice-versa, o número máximo de imagens, de si próprio, que o passageiro é capaz de visualizar quando olha para o conjunto de espelhos é igual a 

    Escolha uma alternativa para a questão 7c963b70-f6
  • 7C9329F1-F6

    Física

    Física Térmica - Termologia
    Universidade Nove de Julho – UNINOVE · 2015FácilEntre para guardar nos favoritos
    Ao sofrer uma expansão isobárica, uma amostra de gás ideal realiza trabalho sobre um projétil de 0,05 kg que, partindo do repouso, é lançado verticalmente para cima atingindo uma altura máxima de 40 m. Considerando que o volume da amostra era de 0,0003 m3 no início da expansão e de 0,0008 m3 no fim, dada a aceleração da gravidade de 10 m/s2 e desprezando perdas de energia, a pressão do gás durante a expansão, em Pa, era igual a
    Escolha uma alternativa para a questão 7c9329f1-f6
  • 7C901AAA-F6

    Física

    Calorimetria
    Universidade Nove de Julho – UNINOVE · 2015FácilEntre para guardar nos favoritos
    O calor específico do alumínio é igual a 0,2 cal/(g ⋅ ºC), enquanto o calor específico do ferro é igual a 0,1 cal/(g ⋅ ºC). Desprezando-se qualquer perda de energia, aquece-se de 20 ºC a 100 ºC um ferro de passar roupas atual (elétrico, de alumínio e de massa igual a 250 g) e um ferro de passar roupas antigo (a carvão, de ferro e de massa igual a 1500 g).

    A quantidade de energia utilizada para o aquecimento do ferro de passar roupas antigo em relação ao ferro de passar roupas atual é
    Escolha uma alternativa para a questão 7c901aaa-f6
  • 7C8C8746-F6

    Física

    Dinâmica
    Universidade Nove de Julho – UNINOVE · 2015FácilEntre para guardar nos favoritos

    Um corpo de massa 0,2 kg atinge o fim de um plano horizontal com velocidade , de intensidade 6 m/s e na direção paralela ao plano. A partir desse ponto, inicia uma queda que o leva a outro plano horizontal, 5 m abaixo do primeiro.


    Imagem da questão de Física, da prova de 2015


    Considerando que a aceleração da gravidade é 10 m/s2 e que a resistência ao ar é desprezível, a energia mecânica que o corpo terá quando atingir o plano inferior será, em J, igual a

    Escolha uma alternativa para a questão 7c8c8746-f6
  • 7C896F12-F6

    Física

    Cinemática
    Universidade Nove de Julho – UNINOVE · 2015DifícilEntre para guardar nos favoritos

    Um projétil é lançado do solo, verticalmente para cima, com velocidade inicial de 30 m/s. Após ter subido 25 m, uma carga explosiva o separa em dois pedaços, ambos de massas idênticas. Imediatamente após a explosão, um dos pedaços perde seu movimento ascendente, ficando com velocidade nula, enquanto o segundo pedaço tem movimento verticalmente para cima.


    Imagem da questão de Física, da prova de 2015


     Considerando desprezível a resistência do ar e a aceleração da gravidade local igual a 10 m/s2 ,a velocidade final, em m/s, do segundo pedaço, imediatamente após a explosão, é

    Escolha uma alternativa para a questão 7c896f12-f6
  • 7C7EA6EE-F6

    Inglês

    Interpretação de texto | Reading comprehension
    Universidade Nove de Julho – UNINOVE · 2015MédioEntre para guardar nos favoritos
    Leia o texto para responder à questão.

    Imagem da questão de Inglês, da prova de 2015

        You need only go back 70 years to a time when a scratch and a common infection could prove deadly. Routine surgery and childbirth could be a hazardous business. Penicillin had been discovered in 1928 by Sir Alexander Fleming, but human trials did not begin for over a decade. The first patient was an Oxford policeman, Albert Alexander, who had scratched his face on a rose bush and the wound became seriously infected (another historical version has him injured in a bombing raid). He was treated with penicillin and his condition rapidly improved, but supplies ran out before he could be cured and he died. By the end of the war penicillin was being widely produced, and other drugs quickly followed - marking the start of the antibiotic era.

        So most of us have grown up with these miracle drugs readily available. It’s understandable that patients and some doctors simply can’t comprehend the concept of a pre-antibiotic world. But that is what’s at stake unless the threat is taken seriously.

    • Rise of superbugs

        Much of modern medicine is now underpinned by antibiotics. Surgery is more invasive than ever: from hip replacements to cancer treatment and transplants - antibiotics are essential to prevent and treat infection. There have been repeated calls on doctors to curb the overuse of antibiotics going back many years.

        Whilst it is important that the NHS (National Health System in England) exercises better stewardship of antibiotics, it is worth remembering that this is a global problem that requires global solutions. Superbug infections respect no borders and have spread from continent to continent with ease. This is a serious concern because many developing countries have far poorer controls on antibiotic use.

    • Misuse

        Last year the World Health Organization found that some antibiotics could be bought legally over the counter in 19 out of 43 European countries surveyed. Then there is the widespread misuse of antibiotics in agriculture, in farmed animals and fish. More antibiotics are used in livestock production than for human health and there is widespread concern about the use of long-term, low-dose antibiotics in animal feed in countries like the US, China and India.

        Part of the problem is due to simple evolutionary pressure: bacteria are constantly evolving, and resistant strains emerging. This means there is a constant battle to stay ahead of the germs. But developing new antibiotics has proved hugely difficult - it’s nearly 30 years since the last new class of antibiotics came on the market.
    According to the sixth paragraph,
    Escolha uma alternativa para a questão 7c7ea6ee-f6
  • 7C7B5BDA-F6

    Inglês

    Tradução | Translation
    Universidade Nove de Julho – UNINOVE · 2015DifícilEntre para guardar nos favoritos
    Leia o texto para responder à questão.

    Imagem da questão de Inglês, da prova de 2015

        You need only go back 70 years to a time when a scratch and a common infection could prove deadly. Routine surgery and childbirth could be a hazardous business. Penicillin had been discovered in 1928 by Sir Alexander Fleming, but human trials did not begin for over a decade. The first patient was an Oxford policeman, Albert Alexander, who had scratched his face on a rose bush and the wound became seriously infected (another historical version has him injured in a bombing raid). He was treated with penicillin and his condition rapidly improved, but supplies ran out before he could be cured and he died. By the end of the war penicillin was being widely produced, and other drugs quickly followed - marking the start of the antibiotic era.

        So most of us have grown up with these miracle drugs readily available. It’s understandable that patients and some doctors simply can’t comprehend the concept of a pre-antibiotic world. But that is what’s at stake unless the threat is taken seriously.

    • Rise of superbugs

        Much of modern medicine is now underpinned by antibiotics. Surgery is more invasive than ever: from hip replacements to cancer treatment and transplants - antibiotics are essential to prevent and treat infection. There have been repeated calls on doctors to curb the overuse of antibiotics going back many years.

        Whilst it is important that the NHS (National Health System in England) exercises better stewardship of antibiotics, it is worth remembering that this is a global problem that requires global solutions. Superbug infections respect no borders and have spread from continent to continent with ease. This is a serious concern because many developing countries have far poorer controls on antibiotic use.

    • Misuse

        Last year the World Health Organization found that some antibiotics could be bought legally over the counter in 19 out of 43 European countries surveyed. Then there is the widespread misuse of antibiotics in agriculture, in farmed animals and fish. More antibiotics are used in livestock production than for human health and there is widespread concern about the use of long-term, low-dose antibiotics in animal feed in countries like the US, China and India.

        Part of the problem is due to simple evolutionary pressure: bacteria are constantly evolving, and resistant strains emerging. This means there is a constant battle to stay ahead of the germs. But developing new antibiotics has proved hugely difficult - it’s nearly 30 years since the last new class of antibiotics came on the market.
    No trecho inicial do quinto parágrafo “some antibiotics could be bought legally over the counter in 19 out of 43 European countries surveyed”, a expresssão em destaque equivale, em português, a
    Escolha uma alternativa para a questão 7c7b5bda-f6
  • 7C73F275-F6

    Inglês

    Interpretação de texto | Reading comprehension
    Universidade Nove de Julho – UNINOVE · 2015FácilEntre para guardar nos favoritos
    Leia o texto para responder à questão.

    Imagem da questão de Inglês, da prova de 2015

        You need only go back 70 years to a time when a scratch and a common infection could prove deadly. Routine surgery and childbirth could be a hazardous business. Penicillin had been discovered in 1928 by Sir Alexander Fleming, but human trials did not begin for over a decade. The first patient was an Oxford policeman, Albert Alexander, who had scratched his face on a rose bush and the wound became seriously infected (another historical version has him injured in a bombing raid). He was treated with penicillin and his condition rapidly improved, but supplies ran out before he could be cured and he died. By the end of the war penicillin was being widely produced, and other drugs quickly followed - marking the start of the antibiotic era.

        So most of us have grown up with these miracle drugs readily available. It’s understandable that patients and some doctors simply can’t comprehend the concept of a pre-antibiotic world. But that is what’s at stake unless the threat is taken seriously.

    • Rise of superbugs

        Much of modern medicine is now underpinned by antibiotics. Surgery is more invasive than ever: from hip replacements to cancer treatment and transplants - antibiotics are essential to prevent and treat infection. There have been repeated calls on doctors to curb the overuse of antibiotics going back many years.

        Whilst it is important that the NHS (National Health System in England) exercises better stewardship of antibiotics, it is worth remembering that this is a global problem that requires global solutions. Superbug infections respect no borders and have spread from continent to continent with ease. This is a serious concern because many developing countries have far poorer controls on antibiotic use.

    • Misuse

        Last year the World Health Organization found that some antibiotics could be bought legally over the counter in 19 out of 43 European countries surveyed. Then there is the widespread misuse of antibiotics in agriculture, in farmed animals and fish. More antibiotics are used in livestock production than for human health and there is widespread concern about the use of long-term, low-dose antibiotics in animal feed in countries like the US, China and India.

        Part of the problem is due to simple evolutionary pressure: bacteria are constantly evolving, and resistant strains emerging. This means there is a constant battle to stay ahead of the germs. But developing new antibiotics has proved hugely difficult - it’s nearly 30 years since the last new class of antibiotics came on the market.
    Conforme as informações do terceiro parágrafo, a medicina atual
    Escolha uma alternativa para a questão 7c73f275-f6
  • 7C6F8D2C-F6

    Inglês

    Palavras conectivas | Connective words
    Universidade Nove de Julho – UNINOVE · 2015FácilEntre para guardar nos favoritos
    Leia o texto para responder à questão.

    Imagem da questão de Inglês, da prova de 2015

        You need only go back 70 years to a time when a scratch and a common infection could prove deadly. Routine surgery and childbirth could be a hazardous business. Penicillin had been discovered in 1928 by Sir Alexander Fleming, but human trials did not begin for over a decade. The first patient was an Oxford policeman, Albert Alexander, who had scratched his face on a rose bush and the wound became seriously infected (another historical version has him injured in a bombing raid). He was treated with penicillin and his condition rapidly improved, but supplies ran out before he could be cured and he died. By the end of the war penicillin was being widely produced, and other drugs quickly followed - marking the start of the antibiotic era.

        So most of us have grown up with these miracle drugs readily available. It’s understandable that patients and some doctors simply can’t comprehend the concept of a pre-antibiotic world. But that is what’s at stake unless the threat is taken seriously.

    • Rise of superbugs

        Much of modern medicine is now underpinned by antibiotics. Surgery is more invasive than ever: from hip replacements to cancer treatment and transplants - antibiotics are essential to prevent and treat infection. There have been repeated calls on doctors to curb the overuse of antibiotics going back many years.

        Whilst it is important that the NHS (National Health System in England) exercises better stewardship of antibiotics, it is worth remembering that this is a global problem that requires global solutions. Superbug infections respect no borders and have spread from continent to continent with ease. This is a serious concern because many developing countries have far poorer controls on antibiotic use.

    • Misuse

        Last year the World Health Organization found that some antibiotics could be bought legally over the counter in 19 out of 43 European countries surveyed. Then there is the widespread misuse of antibiotics in agriculture, in farmed animals and fish. More antibiotics are used in livestock production than for human health and there is widespread concern about the use of long-term, low-dose antibiotics in animal feed in countries like the US, China and India.

        Part of the problem is due to simple evolutionary pressure: bacteria are constantly evolving, and resistant strains emerging. This means there is a constant battle to stay ahead of the germs. But developing new antibiotics has proved hugely difficult - it’s nearly 30 years since the last new class of antibiotics came on the market.
    No trecho final do segundo parágrafo “unless the threat is taken seriously”, o termo em destaque introduz uma ideia de
    Escolha uma alternativa para a questão 7c6f8d2c-f6
  • 7C6ACBE8-F6

    Inglês

    Tradução | Translation
    Universidade Nove de Julho – UNINOVE · 2015MédioEntre para guardar nos favoritos
    Leia o texto para responder à questão.

    Imagem da questão de Inglês, da prova de 2015

        You need only go back 70 years to a time when a scratch and a common infection could prove deadly. Routine surgery and childbirth could be a hazardous business. Penicillin had been discovered in 1928 by Sir Alexander Fleming, but human trials did not begin for over a decade. The first patient was an Oxford policeman, Albert Alexander, who had scratched his face on a rose bush and the wound became seriously infected (another historical version has him injured in a bombing raid). He was treated with penicillin and his condition rapidly improved, but supplies ran out before he could be cured and he died. By the end of the war penicillin was being widely produced, and other drugs quickly followed - marking the start of the antibiotic era.

        So most of us have grown up with these miracle drugs readily available. It’s understandable that patients and some doctors simply can’t comprehend the concept of a pre-antibiotic world. But that is what’s at stake unless the threat is taken seriously.

    • Rise of superbugs

        Much of modern medicine is now underpinned by antibiotics. Surgery is more invasive than ever: from hip replacements to cancer treatment and transplants - antibiotics are essential to prevent and treat infection. There have been repeated calls on doctors to curb the overuse of antibiotics going back many years.

        Whilst it is important that the NHS (National Health System in England) exercises better stewardship of antibiotics, it is worth remembering that this is a global problem that requires global solutions. Superbug infections respect no borders and have spread from continent to continent with ease. This is a serious concern because many developing countries have far poorer controls on antibiotic use.

    • Misuse

        Last year the World Health Organization found that some antibiotics could be bought legally over the counter in 19 out of 43 European countries surveyed. Then there is the widespread misuse of antibiotics in agriculture, in farmed animals and fish. More antibiotics are used in livestock production than for human health and there is widespread concern about the use of long-term, low-dose antibiotics in animal feed in countries like the US, China and India.

        Part of the problem is due to simple evolutionary pressure: bacteria are constantly evolving, and resistant strains emerging. This means there is a constant battle to stay ahead of the germs. But developing new antibiotics has proved hugely difficult - it’s nearly 30 years since the last new class of antibiotics came on the market.
    No trecho final do segundo parágrafo “But that is what’s at stake”, a expressão em destaque equivale, em português, a
    Escolha uma alternativa para a questão 7c6acbe8-f6
  • 7C66017C-F6

    Inglês

    Palavras conectivas | Connective words
    Universidade Nove de Julho – UNINOVE · 2015FácilEntre para guardar nos favoritos
    Leia o texto para responder à questão.

    Imagem da questão de Inglês, da prova de 2015

        You need only go back 70 years to a time when a scratch and a common infection could prove deadly. Routine surgery and childbirth could be a hazardous business. Penicillin had been discovered in 1928 by Sir Alexander Fleming, but human trials did not begin for over a decade. The first patient was an Oxford policeman, Albert Alexander, who had scratched his face on a rose bush and the wound became seriously infected (another historical version has him injured in a bombing raid). He was treated with penicillin and his condition rapidly improved, but supplies ran out before he could be cured and he died. By the end of the war penicillin was being widely produced, and other drugs quickly followed - marking the start of the antibiotic era.

        So most of us have grown up with these miracle drugs readily available. It’s understandable that patients and some doctors simply can’t comprehend the concept of a pre-antibiotic world. But that is what’s at stake unless the threat is taken seriously.

    • Rise of superbugs

        Much of modern medicine is now underpinned by antibiotics. Surgery is more invasive than ever: from hip replacements to cancer treatment and transplants - antibiotics are essential to prevent and treat infection. There have been repeated calls on doctors to curb the overuse of antibiotics going back many years.

        Whilst it is important that the NHS (National Health System in England) exercises better stewardship of antibiotics, it is worth remembering that this is a global problem that requires global solutions. Superbug infections respect no borders and have spread from continent to continent with ease. This is a serious concern because many developing countries have far poorer controls on antibiotic use.

    • Misuse

        Last year the World Health Organization found that some antibiotics could be bought legally over the counter in 19 out of 43 European countries surveyed. Then there is the widespread misuse of antibiotics in agriculture, in farmed animals and fish. More antibiotics are used in livestock production than for human health and there is widespread concern about the use of long-term, low-dose antibiotics in animal feed in countries like the US, China and India.

        Part of the problem is due to simple evolutionary pressure: bacteria are constantly evolving, and resistant strains emerging. This means there is a constant battle to stay ahead of the germs. But developing new antibiotics has proved hugely difficult - it’s nearly 30 years since the last new class of antibiotics came on the market.
    No trecho inicial do segundo parágrafo “So most of us have grown up with these miracle drugs readily available”, o termo em destaque pode ser substituído, sem alteração de sentido, por
    Escolha uma alternativa para a questão 7c66017c-f6
  • 7C6191E1-F6

    Inglês

    Interpretação de texto | Reading comprehension
    Universidade Nove de Julho – UNINOVE · 2015MédioEntre para guardar nos favoritos
    Leia o texto para responder à questão.

    Imagem da questão de Inglês, da prova de 2015

        You need only go back 70 years to a time when a scratch and a common infection could prove deadly. Routine surgery and childbirth could be a hazardous business. Penicillin had been discovered in 1928 by Sir Alexander Fleming, but human trials did not begin for over a decade. The first patient was an Oxford policeman, Albert Alexander, who had scratched his face on a rose bush and the wound became seriously infected (another historical version has him injured in a bombing raid). He was treated with penicillin and his condition rapidly improved, but supplies ran out before he could be cured and he died. By the end of the war penicillin was being widely produced, and other drugs quickly followed - marking the start of the antibiotic era.

        So most of us have grown up with these miracle drugs readily available. It’s understandable that patients and some doctors simply can’t comprehend the concept of a pre-antibiotic world. But that is what’s at stake unless the threat is taken seriously.

    • Rise of superbugs

        Much of modern medicine is now underpinned by antibiotics. Surgery is more invasive than ever: from hip replacements to cancer treatment and transplants - antibiotics are essential to prevent and treat infection. There have been repeated calls on doctors to curb the overuse of antibiotics going back many years.

        Whilst it is important that the NHS (National Health System in England) exercises better stewardship of antibiotics, it is worth remembering that this is a global problem that requires global solutions. Superbug infections respect no borders and have spread from continent to continent with ease. This is a serious concern because many developing countries have far poorer controls on antibiotic use.

    • Misuse

        Last year the World Health Organization found that some antibiotics could be bought legally over the counter in 19 out of 43 European countries surveyed. Then there is the widespread misuse of antibiotics in agriculture, in farmed animals and fish. More antibiotics are used in livestock production than for human health and there is widespread concern about the use of long-term, low-dose antibiotics in animal feed in countries like the US, China and India.

        Part of the problem is due to simple evolutionary pressure: bacteria are constantly evolving, and resistant strains emerging. This means there is a constant battle to stay ahead of the germs. But developing new antibiotics has proved hugely difficult - it’s nearly 30 years since the last new class of antibiotics came on the market.
    According to the text, Albert Alexander
    Escolha uma alternativa para a questão 7c6191e1-f6
  • 7C5DB41D-F6

    Inglês

    Verbos modais | Modal verbs
    Universidade Nove de Julho – UNINOVE · 2015FácilEntre para guardar nos favoritos
    Leia o texto para responder à questão.

    Imagem da questão de Inglês, da prova de 2015

        You need only go back 70 years to a time when a scratch and a common infection could prove deadly. Routine surgery and childbirth could be a hazardous business. Penicillin had been discovered in 1928 by Sir Alexander Fleming, but human trials did not begin for over a decade. The first patient was an Oxford policeman, Albert Alexander, who had scratched his face on a rose bush and the wound became seriously infected (another historical version has him injured in a bombing raid). He was treated with penicillin and his condition rapidly improved, but supplies ran out before he could be cured and he died. By the end of the war penicillin was being widely produced, and other drugs quickly followed - marking the start of the antibiotic era.

        So most of us have grown up with these miracle drugs readily available. It’s understandable that patients and some doctors simply can’t comprehend the concept of a pre-antibiotic world. But that is what’s at stake unless the threat is taken seriously.

    • Rise of superbugs

        Much of modern medicine is now underpinned by antibiotics. Surgery is more invasive than ever: from hip replacements to cancer treatment and transplants - antibiotics are essential to prevent and treat infection. There have been repeated calls on doctors to curb the overuse of antibiotics going back many years.

        Whilst it is important that the NHS (National Health System in England) exercises better stewardship of antibiotics, it is worth remembering that this is a global problem that requires global solutions. Superbug infections respect no borders and have spread from continent to continent with ease. This is a serious concern because many developing countries have far poorer controls on antibiotic use.

    • Misuse

        Last year the World Health Organization found that some antibiotics could be bought legally over the counter in 19 out of 43 European countries surveyed. Then there is the widespread misuse of antibiotics in agriculture, in farmed animals and fish. More antibiotics are used in livestock production than for human health and there is widespread concern about the use of long-term, low-dose antibiotics in animal feed in countries like the US, China and India.

        Part of the problem is due to simple evolutionary pressure: bacteria are constantly evolving, and resistant strains emerging. This means there is a constant battle to stay ahead of the germs. But developing new antibiotics has proved hugely difficult - it’s nearly 30 years since the last new class of antibiotics came on the market.
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