Why do you need to be able to smell in order to taste?

  • Thread starter Thread starter gravenewworld
  • Start date Start date
  • Tags Tags
    Smell
Click For Summary

Discussion Overview

The discussion centers around the relationship between smell and taste, particularly why the ability to smell is crucial for experiencing flavor. Participants explore the physiological and sensory mechanisms involved, as well as the implications of this relationship in everyday experiences, such as when one has a cold or allergies.

Discussion Character

  • Exploratory
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • Some participants suggest that a significant portion of taste is derived from smell, with one stating that 90% of taste is smell.
  • It is proposed that the human tongue can only detect basic tastes (sweet, sour, bitter, salt, umami), while the nose can identify a wider range of molecules.
  • One participant mentions that the perception of flavor can depend on the concentration of the substances being tasted or smelled.
  • Another participant shares a personal experience of holding their nose to avoid the taste of an unpleasant drink, implying that smell is integral to the tasting experience.
  • There is a suggestion that olfactory receptors have limitations in the number of chemicals they can recognize, and that the brain processes sensory information in complex ways.

Areas of Agreement / Disagreement

Participants generally agree that smell plays a critical role in the perception of taste, but there are varying opinions on the extent of this relationship and the mechanisms involved. The discussion remains unresolved regarding the exact nature of how smell and taste interact.

Contextual Notes

Some claims about the percentage of taste attributed to smell and the specific roles of taste receptors versus olfactory receptors are not fully substantiated within the discussion. The complexity of brain processing related to olfaction is acknowledged but not elaborated upon.

gravenewworld
Messages
1,129
Reaction score
27
I always wondered, why you have to be able to smell in order taste anything. Right now my sinuses are so clogged up from allergies, I can not taste one single thing. Why is this?
 
Biology news on Phys.org
I heard that 90% of taste is smell. If you smell something and then taste it you'll find they give off the same essence. :smile:
 
probably your nerve endings are connects...look up olfactory senses
 
Because you do not really taste anything, you smell it.

You can only taste things like, sweet, sour, bitter, salt and umami.

Our taste is not better than needed to make sure we eat good food. Same for smell. It isn't there for our enjoyment in the first place.
 
As Daevren said, we only have a few very basic taste receptors on our tongue. The nose is a very specialized organ and can discriminate many more different molecules.
 
Daevren said:
Because you do not really taste anything, you smell it.

You can only taste things like, sweet, sour, bitter, salt and umami.

I guess it also depends on what you are going to taste or smell, and all of those flavors can be smelt if their concentrations are really high i.e an extremely hot and extremely sweet soup which you don't need to taste in actuality, or a sour yogurt doesn't need you to taste whereas you still realize it is sour...
 
This is true. When I have to drink terrible health drink (or shot glasses hehe) I hold my nose..If you don't smell it you don't tase it.

So why is it a sense?
 
Why is it a sense? You have got receptors that recognize certain molecules and transform the input into an electrical signal that is transferred to the brain. Maybe someone could look up exactly how olfactory senses work.
 
Interestingly, even olfactory receptors are somewhat limited in the number of chemicals they recognize. There is a lot of processing in the brain that isn't well understood. (Did you know this year's Nobel Prize in Physiology and Medicine went to folks studying olfaction?) There is a lot of context-dependent processing, so I would hazard the guess that the combination of smell and taste provides more information about the food than either alone in order to sort the identity of the food.
 

Similar threads

  • · Replies 2 ·
Replies
2
Views
3K
  • · Replies 12 ·
Replies
12
Views
5K
Replies
16
Views
4K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 8 ·
Replies
8
Views
5K
  • · Replies 23 ·
Replies
23
Views
14K
  • · Replies 8 ·
Replies
8
Views
7K
  • · Replies 7 ·
Replies
7
Views
2K
  • · Replies 8 ·
Replies
8
Views
2K
  • · Replies 44 ·
2
Replies
44
Views
20K