Biologia na egzaminy wstępne na pielęgniarstwo: karta pracy z odpowiedziami

How does a vaccine protect a person?

1. AIt blocks the pathogen from entering the nose
2. BIt kills all bacteria in the body straight away
3. CIt trains the immune system with a harmless form of a pathogen
4. DIt replaces the person's white blood cells with stronger ones

Która zasada występuje w RNA, a nie ma jej w DNA?

1. AAdenina
2. BGuanina
3. CTymina
4. DUracyl

What are the bacteria called that normally live on the skin and in the gut without causing disease?

1. APathogens
2. BPrions
3. CVectors
4. DNormal flora

A woman with blood type O has a child with a man of type AB. Which blood types can their children have?

1. AO only
2. BA or B
3. CO or AB
4. DA, B, AB or O

How can bacteria pass antibiotic-resistance genes directly to other bacteria?

1. ABy meiosis, forming gametes with new alleles
2. BBy conjugation, transferring plasmids through a pilus
3. CBy mitosis, sharing copies of their chromosomes with neighbours
4. DBy osmosis, moving genes in water

When plotting the results of an experiment, which variable usually goes on the y-axis?

1. AThe independent variable
2. BThe time the experiment started
3. CThe controlled variable
4. DThe dependent variable

Fresh liver is dropped into hydrogen peroxide and bubbles form quickly. Boiled liver gives no bubbles. What is the best conclusion?

1. ABoiled liver contains more hydrogen peroxide than fresh liver
2. BThe bubbles are carbon dioxide from respiration
3. CHydrogen peroxide is broken down only by heat
4. DLiver contains an enzyme that is destroyed by boiling

A single-celled microbe has a nucleus and a cell wall made of chitin, and it reproduces by budding. What is it most likely to be?

1. AA yeast
2. BAn amoeba
3. CA virus
4. DA bacterium