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

Откуда, согласно клеточной теории, берутся новые клетки?

1. AИз неживого вещества в организме
2. BИз уже существующих клеток
3. CИз вирусов, проникших в организм
4. DИз минеральных веществ пищи

What is apoptosis?

1. AUncontrolled cell division
2. BProgrammed cell death
3. CDivision of the cytoplasm
4. DFusion of two gametes

What is activation energy?

1. AThe heat released when a reaction finishes
2. BThe energy stored in a molecule of ATP
3. CThe energy needed to start a chemical reaction
4. DThe energy plants take in from sunlight

Ученик проверяет, как количество света влияет на рост растений фасоли. Что должно быть контролируемой переменной?

1. AВысота растений в конце
2. BКоличество света, получаемое каждым растением
3. CВывод эксперимента
4. DКоличество воды, получаемое каждым растением

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

1. A250 mg
2. B2500 mg
3. C25 mg
4. D0,0025 mg

A cell has a nucleus and mitochondria but no cell wall and no chloroplasts. What kind of cell is it most likely to be?

1. AAn animal cell
2. BA plant cell
3. CA fungal cell
4. DA bacterial cell

Why does the influenza vaccine need to be updated most years?

1. AAntibodies cannot be made against viruses
2. BInfluenza is caused by a different bacterium each year
3. CThe vaccine damages the immune system after one year, so it must be repeated
4. DThe virus keeps changing its surface proteins through mutation

Plasmids with an ampicillin-resistance gene are mixed with bacteria, which are then spread on a plate containing ampicillin. Why do only a few colonies grow?

1. AAll the bacteria die, and the colonies are fungi
2. BAmpicillin makes some bacteria take up the plasmid
3. CThe plasmid kills the bacteria that do not grow
4. DOnly the bacteria that took up the plasmid can survive