Comparing Perceptual Regions
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Objective
I can compare and contrast the defining characteristics of different perceptual regions.
Part 1 of 4
Warm-up video
CrashCourse · 10:30Vetted channel
We don't generate video — this one is by CrashCourse on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.
Part 2 of 4
Key concepts
3 concepts
- 1
Our senses of taste, or gustation, and smell, or olfaction, are chemical senses that rely on chemoreceptors to detect molecules.
- 2
The process of smell begins when volatile odorants bind to receptors on olfactory sensory neurons in the olfactory epithelium, with each neuron specialized for one kind of smell.
- 3
Although taste buds contain gustatory cells that detect five basic tastes across all parts of the tongue, our overall sense of taste is about 80 percent smell.
Part 3 of 4
Practice
7 questions
Identify the specific type of receptor cells responsible for the sense of smell (olfaction) and the sense of taste (gustation), and describe a key structural difference between these two cell types as presented in the content.
A common cold often leads to a diminished sense of taste. Based on the content, explain the primary reason this occurs, even if a person's taste buds are fully functional.
Part 4 of 4
Exit ticket
Quick comprehension check
“Based on the provided content, compare and contrast the defining characteristics of olfaction (smell) and gustation (taste). Include at least two similarities and two differences in their mechanisms or cellular components.”
Sample answer included in the free materials
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