Section 4 - Taste and Smell

Around how many taste buds are found on the tongue? (576)

• 5,000

• 15,000

• 20,000

• 10,000

In Smell Transduction, Cyclic AMP then acts directly on plasma membrane cation channels, causing them to open, allowing __ and __ to enter.

Which papillae contain taste buds? (578)

• fungiform

• circumvallate

• filiform and circumvallate

• fungiform and circumvallate

Which of these is not one of the basic taste sensations? (578)

• Sweet

• Sour

• Tangy

• Bitter

Salty taste is due to __ influx through __ channels, which directly depolarizes gustatory epithelial cells. (580)

What we think of as taste is actually 80% ___?

• Touch

• Hear

• Smell

• See

Which of these receptors does the mouth not contain? (580)

• Thermoreceptors

• Mechanoreceptors

• Exoreceptors

• Nociceptors

“Hot” foods such as chili peppers bring about their ___ effects by exciting pain receptors in the mouth. (580)

An important role of taste is to trigger __ involved in digestion. (580)

• Reflexes

• Jaws

• Cortexes

• Nerves

____ helps to bring these molecules into contact with the olfactory receptors. (578)