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Sensory Systems: Taste and Smell

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Questions and Answers

What is the primary function of olfactory epithelium in the process of smell?

To bind odorants to receptors (correct)

To transmit nerve impulses to the brain

To filter out environmental cues

To produce mucins and secretory antibodies

What is the role of Ano2 chloride channel in the olfactory transduction pathway?

To remove calcium from the cell

To amplify the signal (correct)

To decrease cAMP levels

To inhibit the Na/Ca channel

What is the function of NCKX4 in the olfactory transduction pathway?

To remove calcium from the cell (correct)

To increase cAMP levels

To bind odorants to receptors

To activate the Na/Ca channel

How many genes are involved in encoding olfactory receptors?

Over 1000 (A) Signup and view all the answers

What is the role of adenyl cyclase in the olfactory transduction pathway?

To increase cAMP levels (D) Signup and view all the answers

What is the name of the taste modality that is associated with the detection of fatty acids?

Fat (CD36) (A) Signup and view all the answers

What is the primary function of Type 1 cells in the taste bud?

To ensheath Type 2 and Type 3 cells and remove potassium and ATP (B) Signup and view all the answers

Which type of cell is responsible for detecting sour and salt tastes?

Type 3 cells (B) Signup and view all the answers

What is the typical lifespan of a taste bud?

8-20 days (C) Signup and view all the answers

What is the role of the gustatory cortex in central processing of taste?

To modulate taste perception through descending input (D) Signup and view all the answers

What is the function of the Nirupa Chaudhari and Stephen D. Roper study?

To identify the receptors for sweet, bitter, and umami tastes (A) Signup and view all the answers

What is the primary difference between central processing of taste and smell?

Smell information is more direct, while taste information involves more brain regions (C) Signup and view all the answers