Biologia na egzaminy wstępne na pielęgniarstwo: karta pracy z odpowiedziami

What is an inference?

1. AA list of the materials used in an experiment
2. BA conclusion reached from observations and prior knowledge
3. CA variable that the scientist changes on purpose
4. DA measurement taken with a calibrated instrument in a laboratory

What is the single most important way to prevent the spread of infection in hospitals?

1. AHand hygiene
2. BGiving every patient antibiotics
3. CWearing a hair net
4. DOpening the windows

Na jakich strukturach białka są składane z aminokwasów?

1. ANa wakuolach
2. BNa lizosomach
3. CNa rybosomach
4. DNa centriolach

Dlaczego bardzo wysoka temperatura powoduje, że większość enzymów przestaje działać?

1. AEnzym porusza się zbyt wolno, by spotkać substrat
2. BCiepło sprawia, że enzym natychmiast rozpada się na aminokwasy
3. CEnzym ulega denaturacji: zmienia się kształt jego centrum aktywnego
4. DSubstrat zamienia się w inny enzym

Dolly the sheep was cloned by putting the nucleus of an adult body cell into an egg cell whose nucleus had been removed. Whose nuclear DNA did Dolly have?

1. AThe sheep that gave the egg cell
2. BThe sheep that gave the body cell nucleus
3. CAn equal mix of all three sheep
4. DThe sheep that carried the pregnancy

Kiedy zachodzi crossing-over między chromosomami homologicznymi?

1. AW fazie S interfazy
2. BW profazie I mejozy
3. CW anafazie mitozy
4. DW telofazie II mejozy

Parts of a protein chain coil into alpha helices and fold into beta sheets, held by hydrogen bonds. Which level of protein structure is this?

1. ATertiary structure
2. BSecondary structure
3. CQuaternary structure
4. DPrimary structure

Why can standard DNA profiling not tell identical twins apart?

1. ATwins always share the same fingerprints on their hands
2. BOnly one twin inherits the father's DNA
3. CIdentical twins have no non-coding DNA
4. DIdentical twins come from one zygote and have the same DNA