Chemosensation Practicum Review

What is not a requisite property of an odorant molecule?

• Volatility
• Molecular weight
• Solubility in water
• Odor threshold

Where do bitter tastants activate receptor cells?

• On the tip of the tongue

• On the sides of the tongue

• On the back of the tongue

• All over the tongue

This papillae is purely structural/mechanical

• Filiform papillae
• Foliate papillae
• Circumvallate papillae
• Fungiform papillae

What types of cells are housed in the olfactory epithelium?

• Epithelial cells, muscle cells, and nerve cells.

• Olfactory sensory neurons, supporting cells, and basal cells.

• Red blood cells, white blood cells, and platelets.
• Skin cells, hair follicle cells, and sweat gland cells.

Supertasters (TT) have a higher density of which type of papillae?

• fungiform papillae
• circumvallate papillae
• foliate papillae
• taste buds

Which tastant is isotopic?

• Sodium (Na) as an isotopic tastant.
• Potassium (K) as an isotopic tastant.
• Calcium (Ca) as an isotopic tastant.
• Chlorine (Cl) as an isotopic tastant.

Tags

NGSS.HS-PS1-8

What is the inability to smell called?

• Olfactory fatigue
• Anosmia
• Hyposmia
• Anosmic syndrome

Which is the "savory" tastant?

• Sweet
• Umami
• Sour
• Bitter

In this type of olfaction, the odorant is carried through the air, inhaled through the nostrils, and then to the nasal receptors.

• Retronasal olfaction
• Gustatory olfaction
• Chemical olfaction
• Orthonasal olfaction

In this type of olfaction, the odorant enters through the mouth, is then diffused through the nasopharynx, to nasal receptors and exits through the nostrils.

• Orthonasal olfaction
• Gustatory perception
• Retronasal olfaction
• Chemical signaling