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Flavor Detective. What Happened?. Adapted from Shirley Wilborne 2002. Smell & Taste. Tongue – only sense 5 tastes – Saltiness Sweetness Sourness Bitterness Meatiness (umami). Nasal Passages. Can respond to 1000s of different molecules. How we sense taste…. Tongue tastes Nose smells
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Flavor Detective What Happened? Adapted from Shirley Wilborne 2002
Smell & Taste Tongue – only sense 5 tastes – • Saltiness • Sweetness • Sourness • Bitterness • Meatiness (umami)
Nasal Passages Can respond to 1000s of different molecules
How we sense taste… • Tongue tastes • Nose smells • Texture • Temperature
Taste is Mostly Smell • Tongue can’t tell the difference between orange and lime. • Nose detects difference • With a cold – onions and apples taste the same
So… why were you able to taste the difference between flavors • May inhale as we swallow, allowing the nose to smell the flavor.
Great Activity for learning how to design experiments.. • Selected jelly beans from the cup without the subject knowing which ones • No feedback increases success of experiment – “blind test” • In drug testing – double blind – the person giving the meds doesn’t know what they’re giving
Control Group • The group of trials need for comparison • No eyes, using nose before the study to compare results with the experimental group. Scientists don’t assume to know what “normal” is. They collect data to be sure.