Biologia na egzaminy wstępne na pielęgniarstwo: karta pracy z odpowiedziami

What does transfer RNA (tRNA) do?

1. AIt brings amino acids to the ribosome
2. BIt joins two DNA strands together
3. CIt copies DNA in the nucleus
4. DIt carries the code out of the nucleus

In which stage of the cell cycle does a cell spend most of its time?

1. AMetaphase
2. BAnaphase
3. CProphase
4. DInterphase

Which organelle makes lipids and helps break down drugs and toxins in liver cells?

1. ASmooth endoplasmic reticulum
2. BNucleolus
3. CCentriole
4. DRough endoplasmic reticulum

Nerve cells release chemical messengers (neurotransmitters) stored in vesicles. By which process are they released?

1. AOsmosis
2. BExocytosis
3. CEndocytosis
4. DPhagocytosis

A tablet contains 2,5 g of a substance. How many milligrams is this?

1. A2500 mg
2. B250 mg
3. C0,0025 mg
4. D25 mg

What does it mean that a person's blood is Rh negative?

1. ATheir plasma has no antibodies at all
2. BTheir red cells lack the RhD antigen
3. CTheir red cells lack the A and B antigens
4. DTheir red cells carry extra RhD antigen

A green plant is kept in a sealed jar in complete darkness for a day. What happens to the carbon dioxide level in the jar?

1. AIt falls, because plants take in more CO₂ when they respire in the dark
2. BIt rises, because the plant respires but cannot photosynthesise
3. CIt falls, because the plant keeps photosynthesising
4. DIt stays the same, because plants do not respire

Uczeń podaje nawóz 2 roślinom pomidora, a 2 innym nie. Rośliny nawożone rosną wyższe. Jaka jest główna słabość wniosku, że nawóz zwiększa wzrost?

1. AWysokości nie da się dokładnie zmierzyć
2. BPróba jest zbyt mała, by wykluczyć przypadek
3. CNie było zmiennej niezależnej
4. DNawóz należało podać wszystkim czterem roślinom