Other questions in this quiz

2. Which of these is false about oldfaction?

  • humans have 170cm2 of oldfactory epithelium covered in receptors
  • cells are depolarised when receptors activated
  • each odorant binds to a specific G protein coupled receptor
  • activation of the G protien opens a cation channel

3. photoreceptors become _ when activated?

  • polarcapped
  • hyperpolarised
  • polarised
  • depolarised

4. Which is false about hair cells?

  • embedded between the basilar and tectorial membranes
  • found in the middle ear
  • open ion channels when vibrations occur to depolarise the membrane
  • are mechanoreceptors

5. Which of these applies to gustation only?

  • requires voluntary action
  • is involuntary
  • odorants must have high vapour pressure
  • every type of stimulant has its own specific receptor type

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