Биология для вступительных экзаменов на сестринские программы: лист заданий с ответами
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Имя: ____________________ Дата: ____________
1.Лёгкая
What is the main job of the nucleolus?
AIt releases energy from glucose for the nucleus
BIt digests worn-out parts of the cell
CIt stores water and salts for the nucleus
DIt makes ribosomal RNA and builds ribosome parts
2.Лёгкая
What are the bacteria called that normally live on the skin and in the gut without causing disease?
APrions
BNormal flora
CPathogens
DVectors
3.Лёгкая
What is a decomposer?
AAn organism that makes food from sunlight
BAn animal that eats only plants
CAn organism that breaks down dead material
DAn animal that hunts other animals
4.Средняя
A tablet contains 2,5 g of a substance. How many milligrams is this?
A0,0025 mg
B2500 mg
C25 mg
D250 mg
5.Средняя
Human adult height varies across a smooth, continuous range rather than falling into a few separate groups. What is the best explanation?
AIt is controlled only by the environment
BIt is controlled by many genes and also affected by environment
CIt is an X-linked recessive trait
DIt is controlled by one gene with two alleles and full dominance
6.Средняя
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?
AThe sheep that carried the pregnancy
BThe sheep that gave the egg cell
CThe sheep that gave the body cell nucleus
DAn equal mix of all three sheep
7.Сложная
Some snakes and whales have tiny remains of hip bones that are not used for walking. What do these structures suggest?
AThey were caused by a recent mutation
BThe bones are needed for swimming
CThey will grow legs in the future
DTheir ancestors had legs
8.Сложная
Bacteria in a closed flask grow quickly at first, but the population then stops increasing. What is the main reason?
AThe bacteria stop dividing once they reach adult size
BThe flask becomes too cold for growth
CNutrients run out and waste products build up
DThe bacteria change into viruses after many divisions
Ответы
1. D · It makes ribosomal RNA and builds ribosome parts
2. B · Normal flora
3. C · An organism that breaks down dead material
4. B · 2500 mg
5. B · It is controlled by many genes and also affected by environment
6. C · The sheep that gave the body cell nucleus
7. D · Their ancestors had legs
8. C · Nutrients run out and waste products build up
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