AQA Biology Unit 5

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1. How is resting potential established in an axon?

  • Active transport of sodium ions out of an axon
  • Active transport of sodium ions into an axon
  • Diffusion of sodium ions out of an axon
  • Active transport of potassium ions out of an axon
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Other questions in this quiz

2. Where are adult stem cells found?

  • Pituitary Glands
  • Bone marrow
  • Ovaries
  • Testes
  • Lungs

3. How does mRNA move out of the nucleus?

  • Through a channel protein
  • Through a nuclear pore
  • It doesnt, it undergoes translation in the nucleus
  • Through a carrier protein

4. Define Tropism

  • A movement that bares some relationship to the location of the stimulus
  • Muscular Contractions
  • A growth movement of part of a plant in response to a directional stimulus
  • Random movement in response to a stimulus

5. How do impulses move along a mylinated neauron

  • Along the mylinated sheath
  • Impulses jump between gaps in the axon known as node of ranvier
  • Diffusion
  • Saltatory conduction

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