Smell and Taste

• Chemoreceptors

  • Stimulated by chemicals in solution
  • Taste has five types of receptors
  • Smell can differentiate a wider range of chemicals
• conchae  - responsible for heating up the air before going inside your lungs / nosebleeding
• Papillae - tongue is being covered with projections that contain taste buds
• Gustatory cells - taste receptors
• 5 basic taste

  • Sweet
  • Sour
  • Bitter
  • Salty
  • Umami
• Sweet - Taste receptors that is respond to sugars, saccharine, some amino acids
• Sour - taste receptors respond to H+ ions or acids
• Bitter - taste receptors respond to alkaloids
• Salty - taste receptors respond to metal ions
• Umami - taste receptors respond to the amino acid glutamate or the beefy taste of meat