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

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1.Лёгкая

Which characteristic is shared by all living things?

  1. AThey respond to changes in their environment
  2. BThey make their own food by photosynthesis
  3. CThey have a backbone and a brain
  4. DThey are made of many cells
2.Лёгкая

Which substances are used up in aerobic cellular respiration?

  1. AGlucose and oxygen
  2. BOxygen and water
  3. CGlucose and carbon dioxide
  4. DCarbon dioxide and water
3.Лёгкая

What is the R group of an amino acid?

  1. AThe carboxyl group at one end
  2. BThe peptide bond between two amino acids
  3. CThe amino group that is shared by all amino acids
  4. DThe side chain that differs between amino acids
4.Средняя

What is the job of the checkpoints in the cell cycle?

  1. ATo join the two daughter cells back together
  2. BTo stop the cycle if the DNA is damaged or the cell is not ready
  3. CTo speed up division whenever the cell is short of nutrients or space
  4. DTo copy the DNA a second time before mitosis
5.Средняя

Which statement best describes biological evolution?

  1. AGrowth of an organism from a single zygote to a fully grown adult
  2. BChange in the body of one organism during its lifetime
  3. CMovement of animals to a new habitat each year
  4. DChange in the inherited traits of a population over generations
6.Средняя

Сколько хромосом содержит нормальная яйцеклетка человека?

  1. A23
  2. B22
  3. C46
  4. D92
7.Сложная

At dawn, a plant shows no overall uptake or release of oxygen or carbon dioxide. What is the best explanation?

  1. AIts rate of photosynthesis equals its rate of respiration
  2. BIts stomata are permanently closed at dawn
  3. CIt only respires at dawn
  4. DIt has stopped both photosynthesis and respiration until it is light
8.Сложная

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

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

Ответы

  1. 1. A · They respond to changes in their environment
  2. 2. A · Glucose and oxygen
  3. 3. D · The side chain that differs between amino acids
  4. 4. B · To stop the cycle if the DNA is damaged or the cell is not ready
  5. 5. D · Change in the inherited traits of a population over generations
  6. 6. A · 23
  7. 7. A · Its rate of photosynthesis equals its rate of respiration
  8. 8. A · Their immune response is too weak to control normally harmless microbes

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