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.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+ ions, from acidic substances, pass through H+ channels. Depolarization takes place
II. Part II is the transduction pathway of the relay molecules. 2. Cation, such as K+, channels are opened.
III. Part III is the response of the cell.
3. An influx of Ca+ ions is activated.
4. The Ca+ activates neurotransmitters.
5. A signal is sent to the neuron attached to the taste bud.
छुं चीज नैबिलय् व चिजं मेया रिसेप्तरय् रसायनिक प्रक्रिया याना मनुया म्हुतुइ बीगु तरङ्गयात सवाः धाइ। साधारनकथं सवाःयात चाकुसवाः, चिसवाः, खायुसवाः, पाउंसवाः आदियात मू सवाःया कथं कायेगु या।
