Biologia na egzaminy wstępne na pielęgniarstwo: karta pracy z odpowiedziami

Co jest cegiełkami budulcowymi (monomerami) białek?

1. ANukleotydy
2. BAminokwasy
3. CKwasy tłuszczowe
4. DMonosacharydy

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

1. AVectors
2. BNormal flora
3. CPathogens
4. DPrions

Which piece of equipment gives the most precise measurement of a liquid volume?

1. AA graduated cylinder
2. BA test tube
3. CA Petri dish
4. DA beaker

Why is water good at dissolving salts and sugars?

1. AIts molecules are nonpolar
2. BIts molecules are polar
3. CIt has a very low boiling point
4. DIt contains carbon atoms

What is the difference between an antiseptic and a disinfectant?

1. AAntiseptics are used on objects and floors; disinfectants are used on skin
2. BAntiseptics kill all spores; disinfectants kill none
3. CAntiseptics are used on living tissue; disinfectants are used on objects
4. DAntiseptics are antibiotics; disinfectants are vaccines

By which process does oxygen enter a cell and carbon dioxide leave it?

1. AActive transport by membrane pumps
2. BFacilitated diffusion through glucose carriers
3. CSimple diffusion through the lipid bilayer
4. DEndocytosis in small vesicles

Fertiliser washes from farmland into a lake. Algae grow rapidly, then die, and later many fish die. What is the main cause of the fish deaths?

1. AThe fish eat too many algae and become ill
2. BBacteria decomposing the dead algae use up the oxygen
3. CThe fertiliser is directly poisonous to fish
4. DThe algae release carbon dioxide that poisons fish

Five recovery times in days are 5, 6, 6, 7 and 30. Which value best describes a typical recovery time, and why?

1. AThe range of 25, because it shows the spread
2. BThe median of 6, because the outlier pulls the mean up
3. CThe maximum of 30, because it shows the worst case
4. DThe mean of 10,8, because it uses every value