Химия для вступительных экзаменов на сестринские программы: лист заданий с ответами

Which form of sugar dissolves fastest in a cup of tea?

1. AA large lump of rock sugar
2. BAll forms dissolve at the same rate
3. CA sugar cube
4. DGranulated sugar

What is gamma radiation?

1. AA slow-moving electron
2. BA stream of helium nuclei with a positive charge
3. CHigh-energy electromagnetic radiation with no mass or charge
4. DA fast stream of protons from the nucleus

What is the term for anything that has mass and takes up space?

1. AHeat
2. BEnergy
3. CForce
4. DMatter

Which element has chemical properties most similar to calcium?

1. AMagnesium
2. BCarbon
3. CScandium
4. DPotassium

0,5 mol of KCl is dissolved to make 250 mL of solution. What is its molarity?

1. A0,5 M
2. B2 M
3. C0,125 M
4. D125 M

Why can a very high fever disrupt the body's chemical reactions?

1. AHigh temperatures turn enzymes into fats
2. BHigh temperatures can change the shape of enzymes so they stop working
3. CHigh temperatures make every enzyme work faster without any limit
4. DHigh temperatures remove the water from blood

Cells oxidise glucose to CO₂ and water, as burning glucose does. How does cellular respiration differ from burning?

1. AIt releases the energy in many small, enzyme-controlled steps
2. BIt releases much more total energy than burning the same glucose
3. CIt does not need oxygen at any stage
4. DIt produces different products from burning

Why does a burn from steam at 100 °C usually cause more damage than one from liquid water at 100 °C?

1. ASteam releases a large amount of extra energy as it condenses on the skin
2. BLiquid water cannot pass any of its heat to the skin
3. CSteam particles are hotter than water particles at the same reading
4. DSteam carries dissolved acid that damages the skin