olfact + taste Word Scramble
|
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Question | Answer |
OBP | Oderant binding protein which is secreted by basal cells in the olfactory epithelium along with mucus |
Where is the oderant receptor | they are expressed by cilia in the olfactory epithelium |
Oderant receptors bind | many drugs---typically will bind a certain type of chemical sequence etc. So a smell is a combination of firing caused by multiple types of OR |
olfactory neurons | are the only neural cells that are constantly replaced (eg they are exposed to odorants and toxins that may damage them) |
Anosmia | you get specific anosmias if you knock-out and a specific ORN(OBP), but general anosmiaif you impair the CNG channel and cAMP fluxes caused by the Gprotein linked receptors |
what are the five taste modalities | sweet, bitter, umami, sour, salty |
Sweet and Umani | T1R1, T1R2, T1R3 mM range affinity. These receptors produce "attraction to " nutrient |
Bitter receptors | T2 (30 receptor types)--- since avoiding poisons is important they must bind toxic stimuli with high affinity (micromolar). Activation of this pathway produces avoidance of food |
T1 vs T2 | They have the same downstream transduction pathway, but you are able to tell whether a chemical is good or bad because T1 and T2 are strictly segregated in different cells |
Tasting hot/spicy etc... | touch receptors that are activated by cold/menthol, and heat capsaicin respectively. |
Created by:
16310914
Popular Medical sets