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Summary
| Description |
English: 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. Ca2+, calcium, protein channels is activated. 6. The increased Ca2+ concentration activates neurotransmitter vesicles. 7. The neuron connected to the taste bud is stimulated by the neurotransmitters. |
| Date | |
| Source | Own work & Purves, Dale. Taste Receptors and the Transduction of Taste Signals. U.S. National Library of Medicine, n.d. Web. May-June 2015. |
| Author | Hldavis4 |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 12:50, 2 June 2015 | | 512 × 450 (98 KB) | Hldavis4 | User created page with UploadWizard |
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