threshold$83189$ - translation to ελληνικό
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threshold$83189$ - translation to ελληνικό

Odor threshold; Odor thresholds; Odor Threshold; Odor threshold value; Odour threshold; Flavor threshold; Olfactory threshold; Threshold for odor

threshold      
n. κατώφλιο ουδούς, κατώφλι, πρόθυρα
sour taste         
  • Taste buds and papillae of the tongue
  • This diagram linearly (unless otherwise mentioned) tracks the projections of all known structures that allow for taste to their relevant endpoints in the human brain.
  • The diagram depicted above shows the signal transduction pathway of the bitter taste. Bitter taste has many different receptors and signal transduction pathways. Bitter indicates poison to animals. It is most similar to sweet. Object A is a taste bud, object B is one taste cell, and object C is a neuron attached to object B. I. Part I is the reception of a molecule.1. A bitter substance such as quinine, is consumed and binds to G Protein-coupled receptors.II. Part II is the transduction pathway 2. Gustducin, a G protein second messenger, is activated. 3. Phosphodiesterase, an enzyme, is then activated. 4. Cyclic nucleotide, cNMP, is used, lowering the concentration 5. Channels such as the K+, potassium, channels, close. III. Part III is the response of the taste cell. 6. This leads to increased levels of Ca+. 7. The neurotransmitters are activated. 8. The signal is sent to the neuron.
  • The diagram depicts the signal transduction pathway of the sour or salty taste. Object A is a taste bud, object B is a taste receptor cell within object A, and object C is the neuron attached to object B.

I. Part I is the reception of hydrogen ions or sodium ions.

1. If the taste is sour, H<sup>+</sup> ions, from acidic substances, pass through H<sup>+</sup> channels. Depolarization takes place

II. Part II is the transduction pathway of the relay molecules. 2. Cation, such as K<sup>+</sup>, channels are opened.

III. Part III is the response of the cell.

3. An influx of Ca<sup>+</sup> ions is activated.

4. The Ca<sup>+</sup> activates neurotransmitters.

5. A signal is sent to the neuron attached to the taste bud.
  • The diagram above depicts the signal transduction pathway of the sweet taste. Object A is a taste bud, object B is one taste cell of the taste bud, and object C is the neuron attached to the taste cell. I. Part I shows the reception of a molecule. 1. Sugar, the first messenger, binds to a protein receptor on the cell membrane. II. Part II shows the transduction of the relay molecules. 2. G Protein-coupled receptors, second messengers, are activated. 3. G Proteins activate adenylate cyclase, an enzyme, which increases the cAMP concentration. Depolarization occurs. 4. The energy, from step 3, is given to activate the K+, potassium, protein channels.III. Part III shows the response of the taste cell. 5. Ca+, calcium, protein channels is activated.6. The increased Ca+ concentration activates neurotransmitter vesicles. 7. The neuron connected to the taste bud is stimulated by the neurotransmitters.
SENSE THAT DETECTS TYPES OF CHEMICALS THAT TOUCH THE TONGUE
Basic taste; Basic tastes; Gustatory; Gustatory system; Sour; Bitter (taste); Sourness; Bitter taste; Yumminess; Saltiness; Primary tastes; Gustation; Tasteful; Sense of taste; Four tastes; Gustatory sense; Gustatory sensation; Tangiest; Sour taste; Tartness; Bitterness (taste); Tart (flavor); Gustaoception; Kokumi; Gustatory systems; Oleogustus; Draft:Oleogustus; Oiliogustus; Oliogustus; Bitter flavor; Primary taste; Taſte; Taste perception; Taste threshold; Salty taste; Salty (taste); Sour (taste); Flavor (taste); Flavour (taste)
ξινίλα, ξυνίλα

Ορισμός

Threshold
·noun Fig.: The place or point of entering or beginning, entrance; outset; as, the threshold of life.
II. Threshold ·noun The plank, stone, or piece of timber, which lies under a door, especially of a dwelling house, church, temple, or the like; the doorsill; hence, entrance; gate; door.

Βικιπαίδεια

Odor detection threshold

The odor detection threshold is the lowest concentration of a certain odor compound that is perceivable by the human sense of smell. The threshold of a chemical compound is determined in part by its shape, polarity, partial charges, and molecular mass. The olfactory mechanisms responsible for a compound's different detection threshold is not well understood. As such, odor thresholds cannot be accurately predicted. Rather, they must be measured through extensive tests using human subjects in laboratory settings.

Optical isomers can have different detection thresholds because their conformations may cause them to be less perceivable for the human nose. It is only in recent years that such compounds were separated on gas chromatographs.

For raw water treatment and waste water management, the term commonly used is Threshold Odor Number (TON). For instance, the water to be supplied for domestic use in Illinois is 3 TON.