Question 1

Which of the following statements about the distribution of taste perception on the tongue is correct?

Accepted Answer

All basic tastes can be perceived equally well across the tongue, except for increased sensitivity to bitter at the back.

Question 2

Which chemical is primarily responsible for the sour taste sensation?

Accepted Answer

Hydrogen ions ($\mathrm{H^+}$)

Question 3

What is the main function of taste papillae on the tongue?

Accepted Answer

To increase the surface area for taste perception and contain taste buds

Question 4

Which of the following best describes the role of umami taste receptors?

Accepted Answer

They respond to glutamic acid and aspartic acid, indicating protein-rich foods.

Question 5

A patient complains of a reduced sense of taste when they have a cold. What is the most likely explanation?

Accepted Answer

The sense of smell is impaired, which reduces the perception of flavor.

Question 6

Which of the following is NOT considered one of the five established basic tastes?

Accepted Answer

Fatty

Question 7

What is the main evolutionary advantage of having a strong bitter taste sensation at the back of the tongue?

Accepted Answer

To detect and expel potentially poisonous or spoiled substances before swallowing

Question 8

Which of the following best explains why 'hot' or 'spicy' is not considered a basic taste?

Accepted Answer

It is a pain signal transmitted by nerves responsible for touch and temperature.

Question 9

Which type of papillae contains the largest number of taste buds per papilla and is arranged in a V-shape at the back of the tongue?

Accepted Answer

Circumvallate papillae

Question 10

Which of the following substances is most likely to activate the 'fatty' taste receptors, according to recent research?

Accepted Answer

Linoleic acid

Question 11

A food scientist wants to create a dish that maximizes the umami taste. Which ingredient should they add to achieve this?

Accepted Answer

Glutamate

Question 12

Which of the following best describes the structure and function of a taste bud?

Accepted Answer

A capsule containing 10-50 sensory cells, each with taste hairs that bind chemicals

Question 13

If a person has 3,000 taste buds and each taste bud contains an average of 30 sensory cells, how many sensory cells do they have in total?

Accepted Answer

$3,000 	imes 30 = 90,000$

Question 14

Which cranial structure is the first to receive taste information from the tongue?

Accepted Answer

Medulla oblongata

Question 15

Which of the following combinations is most likely to produce a 'sweet-sour' flavor profile?

Accepted Answer

Sucrose and citric acid

Question 16

Which of the following statements about taste bud renewal is correct?

Accepted Answer

Sensory cells in taste buds are renewed approximately every week.

Question 17

Which of the following best explains why the combination of taste, smell, texture, and temperature is important for flavor perception?

Accepted Answer

Flavor is a multisensory experience that integrates taste, smell, texture, and temperature.

Question 18

Which of the following is a common misconception about taste perception?

Accepted Answer

Each taste has a specific zone on the tongue where it is best perceived.

Question 19

Which of the following best describes the role of taste hairs in taste buds?

Accepted Answer

They increase the surface area for binding taste chemicals.

Question 20

If each sensory cell can detect 5 basic tastes at 10 different intensity levels, how many possible taste profiles can a single cell have?

Accepted Answer

$5 	imes 10 = 50$

The Science of Taste: Structure and Function in Human Nutrition

Study Guide - Practice Questions