Questões de Concurso Comentadas para técnico de laboratório

Foram encontradas 8.066 questões

Resolva questões gratuitamente!

Junte-se a mais de 4 milhões de concurseiros!

Q3510839 Técnicas em Laboratório
Com relação a técnica de imunohistoquímica (IHQ), assinale a alternativa correta quanto à sua aplicação e princípio.
Alternativas
Q3510838 Técnicas em Laboratório
A técnica de Western Blot foi criada em 1979 por W. Neal Burnette e rapidamente se tornou uma das técnicas mais importantes na biologia molecular e nas ciências biomédicas, uma vez que a técnica
Alternativas
Q3510837 Técnicas em Laboratório
Com relação ao cultivo de células in vitro, assinale a alternativa correta.
Alternativas
Q3510836 Técnicas em Laboratório
Os vírus possuem uma ampla diversidade estrutural e podem ser classificados com base em características como o tipo de genoma e a organização de seu capsídeo. Assinale a alternativa que descreve corretamente uma característica estrutural típica de vírus.
Alternativas
Q3510809 Inglês
        Synesthesia is when you hear music, but you see shapes. Or you hear a word or a name and instantly see a color. Synesthesia is a name for when you experience one of your senses through another. For example, you might hear the name "Alex" and see green. Or you might read the word "street" and taste citrus fruit.
        The word "synesthesia" has Greek roots. It translates to “perceive together.” Synesthesia isn’t a disease or disorder. It won’t harm your health, and it doesn’t mean you’re mentally ill. Some studies suggest people who have it may do better on memory and intelligence tests than those who don’t.
        One of the most common responses is to see letters, numbers, or sounds as colors. You might also see or hear a word and taste food; hear sounds and see shapes or patterns; feel a touch when seeing someone else being touched. (This is called mirror touch.)
        It can be an annoyance. But most synesthetes see their condition as a sixth sense, not a drawback.
        You can’t control it. The response happens right away. For example, if you hear a new piece of music, you may see a color or taste a flavor without any effort. It just happens.
        It’s internal, mostly. The colors are just in your mind.
        It stays the same over time. If you see the letter "A" in green today, you’ll see it in green 10 years from now.
        It often starts in childhood. Studies of kids with synesthesia found that it develops over time.
webmd.com. December 17, 2024. Adaptado. 
De acordo com o texto apresentado, a sinestesia pode ser descrita como
Alternativas
Q3510808 Inglês

        Scientists have found that generally the world feels brighter when you wake up. 


        People start the day in the best frame of mind in the morning, but end in the worst, at about midnight, the findings suggest, with the day of the week and the season also playing a part.


        Mental health also tends to be more varied at weekends but steadier during the week, according to the study led by University College London.


        “Generally, things do seem better in the morning,” the researchers concluded.


        Mental health and wellbeing are dynamic in nature, and subject to change over short and long periods. However, few studies have looked at how they might change over the course of the day.


        Scientists wanted to explore whether time of day was associated with variations in mental health, happiness, life satisfaction, sense of life being worthwhile and loneliness.


        People in the study answered questionnaires, with questions such as: “In the past week, how happy did you feel?”, “How satisfied have you been with your life?”, and “To what extent have you felt the things you are doing in your life are worthwhile?”


        Factors such as age, health conditions and whether people worked were taken into account.


        The results showed that happiness, life satisfaction, and worthwhile ratings were all higher on Mondays and Fridays than on Sundays, while happiness was also higher on Tuesdays. There was no evidence that loneliness differed across days of the week.


        There was clear evidence of a seasonal influence on mood. Compared with winter, people tended to have lower levels of depressive and anxiety symptoms and loneliness, and higher levels of happiness, and feeling that life was worthwhile in the three other seasons.


        Mental health was best in the summer across all outcomes. But the season didn’t affect the associations observed across the day, however.


        This was an observational study, so it cannot establish cause.


The Guardian.com. February 5, 2025. Adaptado.

No trecho “Factors such as age, health conditions and whether people worked were taken into account” (8º parágrafo), o termo "whether" indica
Alternativas
Q3510807 Inglês

        Scientists have found that generally the world feels brighter when you wake up. 


        People start the day in the best frame of mind in the morning, but end in the worst, at about midnight, the findings suggest, with the day of the week and the season also playing a part.


        Mental health also tends to be more varied at weekends but steadier during the week, according to the study led by University College London.


        “Generally, things do seem better in the morning,” the researchers concluded.


        Mental health and wellbeing are dynamic in nature, and subject to change over short and long periods. However, few studies have looked at how they might change over the course of the day.


        Scientists wanted to explore whether time of day was associated with variations in mental health, happiness, life satisfaction, sense of life being worthwhile and loneliness.


        People in the study answered questionnaires, with questions such as: “In the past week, how happy did you feel?”, “How satisfied have you been with your life?”, and “To what extent have you felt the things you are doing in your life are worthwhile?”


        Factors such as age, health conditions and whether people worked were taken into account.


        The results showed that happiness, life satisfaction, and worthwhile ratings were all higher on Mondays and Fridays than on Sundays, while happiness was also higher on Tuesdays. There was no evidence that loneliness differed across days of the week.


        There was clear evidence of a seasonal influence on mood. Compared with winter, people tended to have lower levels of depressive and anxiety symptoms and loneliness, and higher levels of happiness, and feeling that life was worthwhile in the three other seasons.


        Mental health was best in the summer across all outcomes. But the season didn’t affect the associations observed across the day, however.


        This was an observational study, so it cannot establish cause.


The Guardian.com. February 5, 2025. Adaptado.

De acordo com o texto, a relação entre estações do ano e variação emocional torna mais plausível a inferência de que
Alternativas
Q3510805 Inglês
        The idea of time blindness, or difficulty perceiving and managing time, has spread across social media. While there is no diagnosis for it, some people explain that, despite their best efforts, they frequently lose track of time, underestimate or overestimate how long tasks will take, show up late, and miss deadlines.

        Time blindness is a psychological phenomenon that nearly everyone experiences from time to time, said Michael Manos, at the Cleveland Clinic.

        “Who doesn’t get completely occupied with a hobby or a conversation they’re having with somebody, or some kind of activity that is so interesting that it occupies attention, and it takes attention away from other things that might be pressing?” he said.

        Not all experts agree, but some suggest that it could be a limitation for some people.

        Renae Beaumont, an associate professor of psychology in clinical psychiatry, said time blindness and flow, a state of intense focus in an activity that is engaging, enjoyable and temporarily distracts from the passage of time, are different phenomena.

        “Flow is typically associated with positive emotions when you’re doing something you enjoy, and you are able to shift to a different task when you need to. Time blindness involves getting stuck, losing track of time and typically having trouble transitioning to a different task,” she said.

        There is no clear consensus, but some researchers consider time blindness to be an impairment in temporal perception, or the way the brain experiences time.

        Certain strategies may help people who struggle with time perception and management, experts said. 

        Use digital reminders including alarms, timers and calendars to keep track of appointments, dates and deadlines.

Washington Post. February 5, 2025. Adaptado.
No trecho "While there is no diagnosis for it, some people explain that..." (1º parágrafo), o termo "While" pode ser substituído, sem prejuízo de sentido, por 
Alternativas
Q3510804 Inglês
        The idea of time blindness, or difficulty perceiving and managing time, has spread across social media. While there is no diagnosis for it, some people explain that, despite their best efforts, they frequently lose track of time, underestimate or overestimate how long tasks will take, show up late, and miss deadlines.

        Time blindness is a psychological phenomenon that nearly everyone experiences from time to time, said Michael Manos, at the Cleveland Clinic.

        “Who doesn’t get completely occupied with a hobby or a conversation they’re having with somebody, or some kind of activity that is so interesting that it occupies attention, and it takes attention away from other things that might be pressing?” he said.

        Not all experts agree, but some suggest that it could be a limitation for some people.

        Renae Beaumont, an associate professor of psychology in clinical psychiatry, said time blindness and flow, a state of intense focus in an activity that is engaging, enjoyable and temporarily distracts from the passage of time, are different phenomena.

        “Flow is typically associated with positive emotions when you’re doing something you enjoy, and you are able to shift to a different task when you need to. Time blindness involves getting stuck, losing track of time and typically having trouble transitioning to a different task,” she said.

        There is no clear consensus, but some researchers consider time blindness to be an impairment in temporal perception, or the way the brain experiences time.

        Certain strategies may help people who struggle with time perception and management, experts said. 

        Use digital reminders including alarms, timers and calendars to keep track of appointments, dates and deadlines.

Washington Post. February 5, 2025. Adaptado.
Conforme o texto, uma característica do conceito de “flow” envolve
Alternativas
Q3484241 Eletricidade

No que tange à eletrônica básica, julgue o item a seguir. 


O funcionamento de um LED, diodo emissor de luz, independe de sua polarização. 

Alternativas
Q3484239 Eletrônica

No que tange à eletrônica básica, julgue o item a seguir. 


Em um capacitor ideal, após o carregamento inicial, a corrente contínua pode circular incessantemente, mesmo com tensão constante. 

Alternativas
Q3484236 Desenho Técnico

Julgue o item seguinte, relativo a desenho técnico.


Na cotagem funcional, as cotas devem ser colocadas nas vistas em que sejam mais facilmente interpretadas, ainda que haja redundância. 

Alternativas
Q3484227 Direito Ambiental

Julgue o seguinte item, que versa sobre gestão de resíduos industriais. 


Conforme a Política Nacional de Resíduos Sólidos, a gestão de resíduos deve obedecer à seguinte ordem de prioridade: não geração, redução, tratamento, reutilização, reciclagem e disposição final. 

Alternativas
Q3484226 Engenharia Ambiental e Sanitária

Julgue o seguinte item, que versa sobre gestão de resíduos industriais. 


Segundo a norma brasileira de classificação de resíduos sólidos, um resíduo industrial inflamável classifica-se como de classe I. 

Alternativas
Q3484223 Meio Ambiente

Julgue o próximo item, relacionado a saúde e meio ambiente. 


Fumos são definidos como partículas sólidas de forma alongada de determinado material, com capacidade de permanecer suspensas no ar, podendo ser inaladas. 

Alternativas
Q3484219 Segurança e Saúde no Trabalho

Com base nos princípios de higiene e segurança ocupacional relacionados ao trabalho em uma indústria de produtos químicos na qual os trabalhadores lidam frequentemente com compostos voláteis e elementos metálicos, julgue o item seguinte. 


O contato dos trabalhadores da indústria química com solventes e metais pesados configura exposição a risco, que se caracteriza como a situação ou ato com potencial para causar lesão ou doença ocupacional. 

Alternativas
Q3471841 Biomedicina - Análises Clínicas

Julgue o item que se segue, relativo à urinálise. 


No exame de sedimento, os elementos a serem contados incluem leucócitos, eritrócitos e cilindros. 

Alternativas
Q3471840 Biomedicina - Análises Clínicas

Julgue o item que se segue, relativo à urinálise. 


Antes de serem testadas em tira reagente, urinas refrigeradas devem ser mantidas à temperatura ambiente, uma vez que algumas reações químicas da tira reagente dependem da temperatura. 

Alternativas
Q3471838 Biomedicina - Análises Clínicas

No que se refere ao controle de qualidade em imunologia, julgue o próximo item. 


É estritamente proibido o uso de mistura de pool de soro na preparação de sorocontrole interno em laboratórios clínicos.

Alternativas
Q3471837 Biomedicina - Análises Clínicas

A respeito dos métodos laboratoriais para a dosagem dos hormônios T3 e T4, julgue o item seguinte. 


A dosagem de T4 por radioimunoensaio (RIA) baseia-se na ligação competitiva da globulina de ligação à tiroxina TBG com a T4 do paciente e a T4 marcada com iodo. 

Alternativas
Respostas
1401: E
1402: C
1403: B
1404: D
1405: C
1406: D
1407: E
1408: A
1409: B
1410: E
1411: E
1412: E
1413: E
1414: C
1415: E
1416: E
1417: C
1418: C
1419: E
1420: C