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Multiple Choice Quiz
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1
Which of the following statements about the human ability to identify human odors is true?
A)Men perform better than woman at the task.
B)People are better at identifying the gender of odor donors from breath than from perspiration from hands.
C)People are poor at discriminating gender based on smell.
D)A person can usually identify his or her own odor.
2
Female pigs can be trained to hunt for truffles (a highly prized fungus) because:
A)they enjoy the flavor of truffles
B)truffles smell like male pig pheromones
C)female pigs are more trainable than males
D)female pigs feed their young with truffles
3
The ability of a substance to give off vapors is known as:
A)volatility
B)diffusability
C)expressibility
D)vaporation
4
Which statement is NOT a problem for the first stages of processing in the olfactory system?
A)The sample of odorant molecules varies dramatically from moment to moment.
B)A given source may give off complex mixtures of odorant molecules.
C)Most volatile chemicals are fat soluble.
D)The odorant molecules reaching the nose may come from multiple sources.
5
In the Henning "smell prism" model of odor classification:
A)odors near the center of each face of the prism can be described with a single label
B)all odors can be described as a combination of just 4 principal qualities
C)clear predictions about sensory experiences can be made
D)most odors fall in the interior of the prism
6
By using multidimensional scaling, it has been determined that the classification of odors is based on _____ perceptual dimensions.
A)2
B)3
C)4
D)8
7
Odor constancy is the phenomenon in which:
A)the perceived classification of an odor doesn't depend on the intensity of the odor
B)the perceived intensity of an odor doesn't depend on the flow rate of air through the sinuses
C)the perceived classification of an odor doesn't depend on the time when it is presented
D)the perceived intensity of an odor doesn't depend on the classification of an odor
8
In the "dual sense" theory of olfaction, there is a distinction between:
A)odors nearby and odors from a distance
B)familiar odors and unfamiliar odors
C)self-generated odors and other-generated odors
D)odors in the mouth and odors outside the body
9
Receptor cells for the sense of smell sit in a patch of tissue called the:
A)olfactory bulb
B)olfactory epithelium
C)olfactory tract
D)olfactory mucosa
10
Olfactory sensory neurons live for:
A)5 to 8 days
B)5 to 8 weeks
C)5 to 8 months
D)5 to 8 years
11
Specific anosmia is:
A)complete inability to smell
B)complete inability to smell a particular class of odors
C)high sensitivity to smell
D)high sensitivity to a particular class of odors
12
Which one of the methods has been considered most useful in olfactory classification?
A)method of constant stimuli
B)method of limits
C)multidimensional scaling
D)none of the above
13
At any time, the lining of one nostril is more engorged than the other. In other words, one nostril is less easy to breathe through than the other. This is known as:
A)anosmia
B)nasal cycle
C)cilia
D)none of the above
14
Extending from the dendritic end of each olfactory sensory neuron are:
A)clumps of cilia
B)microvilli
C)synapses
D)post-synaptic receptors
15
The common chemical sense is mediated by:
A)olfactory sensory neurons
B)free nerve endings
C)both a and b
D)neither a nor b





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