Biologia na egzaminy wstępne na pielęgniarstwo: karta pracy z odpowiedziami

What are round (spherical) bacteria called?

1. AVibrios
2. BCocci
3. CSpirilla
4. DBacilli

What is the cytoplasm?

1. AThe jelly-like contents between the membrane and nucleus
2. BThe stiff outer layer of cellulose that surrounds a plant cell
3. CThe space between two neighbouring cells
4. DThe fluid found only inside the nucleus

Which element is found in all organic molecules?

1. ASulfur
2. BPhosphorus
3. CNitrogen
4. DCarbon

During childbirth, pressure on the cervix causes oxytocin release, which causes stronger contractions and more pressure. What kind of control is this?

1. APositive feedback
2. BNatural selection
3. CNegative feedback
4. DHomeostatic balance

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 carried the pregnancy
2. BAn equal mix of all three sheep
3. CThe sheep that gave the egg cell
4. DThe sheep that gave the body cell nucleus

After gel electrophoresis, which DNA fragments are found furthest from the wells?

1. AThe fragments with the most adenine
2. BThe smallest fragments
3. CThe fragments with the most guanine
4. DThe largest fragments

Sweating cools the body. Which property of water best explains this?

1. AIt is less dense as ice than as a liquid
2. BIt has a very low specific heat
3. CIt is a nonpolar solvent
4. DIt takes a lot of heat energy to evaporate

HIV infects and destroys helper T cells. Why do people with untreated advanced HIV get infections that healthy people rarely get?

1. AHelper T cells make the antibiotics that the body needs to fight infection
2. BThe virus turns harmless microbes into pathogens
3. CTheir immune response is too weak to control normally harmless microbes
4. DHIV kills the normal flora of the skin and gut