Werkblad Biologie voor toelatingsexamens verpleegkunde met antwoorden

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Naam: ____________________   Datum: ____________

1.Makkelijk

What is a mutagen?

  1. AA protein that repairs damaged DNA
  2. BAn enzyme that copies DNA
  3. CSomething that can cause changes in DNA
  4. DA cell that divides without control
2.Makkelijk

Which definition of a species is most often used for animals?

  1. AAny organisms that look alike
  2. BAll the animals that eat the same food
  3. CA group that can interbreed and have fertile offspring
  4. DAll of the different organisms that live together in one area
3.Makkelijk

What is the R group of an amino acid?

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

In a food chain, producers hold 10 000 units of energy. Roughly how much is passed on to the primary consumers?

  1. AAbout 10 000 units
  2. BAbout 10 units
  3. CAbout 1000 units
  4. DAbout 5000 units
5.Gemiddeld

What causes cohesion between water molecules?

  1. AHydrogen bonds between neighbouring molecules
  2. BCovalent bonds between neighbouring molecules
  3. CMagnetic forces between hydrogen atoms
  4. DIonic bonds between oxygen atoms
6.Gemiddeld

Which statement best describes biological evolution?

  1. AChange in the inherited traits of a population over generations
  2. BGrowth of an organism from a single zygote to a fully grown adult
  3. CChange in the body of one organism during its lifetime
  4. DMovement of animals to a new habitat each year
7.Moeilijk

Some viruses are surrounded by a lipid envelope taken from the host cell's membrane. Why are these viruses usually inactivated easily by soap and alcohol?

  1. ASoap and alcohol break up the lipid envelope
  2. BSoap and alcohol dissolve the viral DNA directly
  3. CThe envelope is made of chitin, which soap digests
  4. DEnveloped viruses have no proteins at all
8.Moeilijk

Potato cylinders are placed in sugar solutions of different strengths. They gain mass in weak solutions, lose mass in strong ones and show no change at 0,3 mol/L. What can be concluded?

  1. ASugar enters the cells only by active transport, not by diffusion
  2. BThe potato cells have a solute concentration of about 0,3 mol/L
  3. CThe potato cells contain no water at all
  4. DPotato cells are always hypertonic to sugar solutions

Antwoordenblad

  1. 1. C · Something that can cause changes in DNA
  2. 2. C · A group that can interbreed and have fertile offspring
  3. 3. D · The side chain that differs between amino acids
  4. 4. C · About 1000 units
  5. 5. A · Hydrogen bonds between neighbouring molecules
  6. 6. A · Change in the inherited traits of a population over generations
  7. 7. A · Soap and alcohol break up the lipid envelope
  8. 8. B · The potato cells have a solute concentration of about 0,3 mol/L

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