TB10 P&C Lecture 2; Olfaction and taste

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  • Created by: mint75
  • Created on: 24-05-16 11:11

1. Olfactory cilia...?

  • Force air flow against epithelium
  • Covered in mucus and is fragile
  • Part of the olfactory sensory neuron, each OSN has a single type of odor receptor.
  • Oderant molecules 'stick to' this when air comes into contact with it
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Other questions in this quiz

2. What is a signal of distress found in tears?

  • Chemosweat
  • Chemosignal
  • Sweat
  • Chemoreceptor

3. What is the McClintock effect?

  • The synchronisation of menstrual cycles has a pheremone basis
  • The synchronisation of menstrual cycles has an astrological basis
  • The synchronisation of menstrual cycles has a sociocognitive basis
  • The synchronisation of menstrual cycles has a emotional basis

4. What is the core concept of shape theory?

  • Receptor specificity is based on molecular structure. Oderants must have the right shape to activate the receptor, there is a certain receptor for each molecule
  • Molecules with the same IR vibrational spectrum should smell similar, same shape diff vibrations smell different. Bond energies determine activation level
  • A two-stage theory. Molecules must be the right shape to bond to receptor sites but bond energies determine final activation level.

5. When you smell a gas leak what are you actually smelling?

  • Memphetamine
  • Butyl mercaptan
  • Sodium chloride
  • Methane

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