Gustation & Olfaction

Question 1

What senses are apart of Gustation?

Answer 1

Taste:
Sweet
Sour (and Carbonation)
Salty
Bitter
Umami

Question 2

What is Umami predominantly?

Answer 2

Glutamate!

MSG-Monosodiumglutamate can make things taste umami.

Question 3

What two cranial nerves Innervate the tongue?

Answer 3

Question 4

What are the 3 kinds of papillae in the tongue?

Answer 4

Question 5

Fill in blank on black box. If you can name all of them, great!

Answer 5

Question 6

Understand parts of taste receptors.

Answer 6

Question 7

Define the labeled line theory.

Answer 7

Asking professor about it

Question 8

What taste receptors are GPCR’s

Answer 8

Sweet, bitter, umami

Question 9

What taste receptors are ion channels?

Answer 9

Bitter(again), salty, sour (and carbonation).

Question 10

Describe mechanism of taste receptor

Answer 10

Question 11

Explain the broad GCPR pathway for taste.

Answer 11

Question 12

Besides in your mouth, where else are taste receptors?

Answer 12

The gut(intestine), airway.

Question 13

How many odorants can humans distinguish?

Answer 13

Up to 5,000

Question 14

Define the pathway of olfaction. What special about it?

Answer 14

Question 15

The olfactory anatomy

Answer 15

Question 16

Describe how olfactory transduction takes place:

Answer 16

Question 17

Main olfactory pathway

Answer 17

Question 18

How many Olfactory receptor genes are expressed on one olfactory sensory neuron?

Answer 18

Only 1!

Question 19

How can one sensory neuron in the nose only have one receptor gene expressed each yet we can smell up to 5000 different smells?

Answer 19

Combinational receptor codes make up odors.

Question 20

Define what flavor is.

Answer 20

Question 21

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