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Multiple Choice Quiz
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1
The senses of smell and taste depend on the presence of _____.
A)thermoreceptors
B)chemoreceptors
C)photoreceptors
D)mechanoreceptors
2
Chemoreceptors are found only in the vertebrates.
A)True
B)False
3
Chemical messages passed between individuals are called _____.
A)neurotransmitters
B)hormones
C)pheromones
4
In amphibians, chemoreceptors _____.
A)locate mates
B)detect harmful chemicals
C)find food
D)all of the above
5
In insects, chemoreceptors are found largely on their feet.
A)True
B)False
6
In humans, taste buds can be found on the _____.
A)hard palate
B)epiglottis
C)tongue
D)all of the above
7
Sweet receptors are concentrated _____.
A)toward the back of the tongue
B)along the margins of the tongue
C)near the tip of the tongue
8
There are _____ primary types of tastes.
A)two
B)four
C)six
D)eight
9
Chemoreception is believed to be the most primitive sense.
A)True
B)False
10
When molecules in our food bind the receptor proteins of a taste bud, nerve impulses are generated in associated _____ nerve fibers.
A)sensory
B)motos
11
Each olfactory receptor cell has olfactory cilia which bear a number of different receptor proteins for odor molecules.
A)True
B)False
12
Aromas can arouse vivid memories because the olfactory bulbs have direct connections with the _____.
A)occipital lobe
B)hypothalamus
C)cerebellum
D)limbic system
13
In humans, the olfactory cells are located in the roof of the nasal cavity.
A)True
B)False
14
When you have a cold, food tastes bland because you've temporarily lost your sense of taste.
A)True
B)False
15
Part of what we refer to as smell may actually be taste.
A)True
B)False
16
Image forming eyes are found among _____.
A)annelids
B)molluscs
C)cnidarians
D)all of the above
17
Compound eyes are found among _____.
A)arthropods
B)flatworms
C)echinoderms
D)roundworms
18
Nectar guides on flowers _____.
A)can't be seen by humans
B)highlight the reproductive parts of the flower
C)are seen by insects whose eyes respond to ultraviolet rays
D)all of the above
19
A camera-type eye is found in _____.
A)insects
B)planaria
C)octopuses
D)all of the above
20
Among mammals, only primates have color vision.
A)True
B)False
21
Vertebrates have a camera-type eye like those seen in certain molluscs.
A)True
B)False
22
The presence of a camera-type eye in certain molluscs and vertebrates suggests they are closely related and the eye is the result of divergent evolution.
A)True
B)False
23
Vision is dependent upon the presence of _____.
A)chemoreceptors
B)photoreceptors
C)mechanoreceptors
D)thermoreceptors
24
All animals have some photoreceptors.
A)True
B)False
25
The eyespots of planaria allow them to determine _____.
A)the direction of light
B)only the presence of light
C)the intensity of light
D)all of the above
26
Photoreceptors generate nerve impulses which pass to the brain by way of _____ nerve fibers.
A)motor
B)trigeminal
C)vagus
D)optic
27
The innermost layer of the human eye is the _____.
A)sclera
B)retina
C)cornea
D)choroid
28
Only the _____ of the human eye contains photoreceptors.
A)lens
B)humors
C)retina
D)iris
29
The _____ is like the diaphragm on a microscope since it regulates the entrance of light.
A)lens
B)pupil
C)cornea
D)iris
30
Light is refracted by the _____.
A)humors
B)lens
C)cornea
D)all of the above
31
The oculomotor nerve transmits impulses to the brain.
A)True
B)False
32
Color vision is made possible by _____.
A)rods
B)cones
C)both A and B
33
The fovea centralis _____.
A)is where vision is most acute
B)has a high concentration of cones
C)both A and B
34
The choroid contains many blood vessels and pigments that absorb stray light.
A)True
B)False
35
Which is/are part of the choroid?
A)the iris
B)the ciliary body
C)both A and B
36
The anterior compartment between the cornea and lens is filled with _____ humor.
A)aqueous
B)vitreous
C)both A and B
37
Vitreous humor fills the posterior compartment behind the lens.
A)True
B)False
38
Rod cells _____.
A)are very sensitive to light
B)help us see at night
C)don't see color
D)all of the above
39
When we look at something, light rays pass through the pupil and are focused on the _____.
A)optic nerve
B)lens
C)retina
D)sclera
40
With normal aging, the lens loses its ability to accommodate for far away objects.
A)True
B)False
41
Radial keratotomy is a treatment for glaucoma.
A)True
B)False
42
Images form on the retina in an inverted and reversed manner.
A)True
B)False
43
Focusing of the light starts with the _____.
A)humors
B)cornea
C)lens
44
The shape of the lens is controlled by _____.
A)the ciliary muscle
B)pseudostratified ciliated epithelium
C)cardiac muscle
D)the iris
45
The whites of your eyes are the _____.
A)iris
B)choroid
C)retina
D)sclera
46
Nearsighted people can have their vision corrected with a concave lens which focus the image on the retina.
A)True
B)False
47
People who can see a near object, but have trouble seeing a size 20 letter 20 feet away are farsighted.
A)True
B)False
48
Nearsighted people _____.
A)often have an elongated eyeball
B)can't see things at a distance because the image is focused in front of the retina
C)both A and B
49
Eyestrain from doing a lot of work close up is due to fatigue of the ciliary muscle.
A)True
B)False
50
An astigmatism is caused by an uneven _____.
A)cornea
B)lens
C)both A and B
51
Cataracts can be easily treated with glasses that have a convex lens.
A)True
B)False
52
The light absorbing molecule in rods is a derivative of _____.
A)vitamin K
B)vitamin A
C)vitamin C
D)vitamin E
53
Eating carrots can improve your night vision.
A)True
B)False
54
Cones _____.
A)are activated by bright light
B)allow us to see well at night
C)provide us with peripheral vision
D)all of the above
55
The blind spot of your eye is the area where the optic nerve exits the retina.
A)True
B)False
56
The blurred vision provided by the rods is result of as many as 100 rods synapsing with just one ganglion cell.
A)True
B)False
57
Integration occurs as signals pass to _____.
A)ganglion cells
B)bipolar cells
C)both A and B
58
Synaptic integration and processing of visual information doesn't begin until nerve impulses reach the brain.
A)True
B)False
59
Long-term exposure to the ultraviolet rays of the sun increases the incidence of _____.
A)cataracts
B)macular degeneration
C)both A and B
60
Any noise above 80 decibels could result in damage to the hair cells of the _____
A)semicircular canals
B)spiral organ
C)utricle
D)saccule
61
Which is located in the inner ear?
A)semicircular canals.
B)vestibule.
C)cochlea.
D)all of the above.
62
Earwax is produced by modified sweat glands.
A)True
B)False
63
The middle ear is connected to the nasopharynx by the _____.
A)auditory canal
B)semicircular canals
C)eustachian tube
D)tympanic membrane
64
Which of the following is found between the tympanic membrane and the oval window.
A)malleus
B)stapes
C)incus
D)all of the above
65
The part(s) of the inner ear involved with hearing is/are the _____.
A)cochlea
B)semicircular canals
C)vestibule
D)tympanic membrane
66
The volume of a noise is a function of the _____ of the sound waves.
A)frequency
B)amplitude
C)both A and B
67
Sound interpretation occurs in the auditory areas of the _____.
A)cerebral cortex
B)pons
C)hypothalamus
D)cerebellum
68
The tone of a noise is believed to be a function of the brain's interpretation based on the distribution of hair cells stimulated.
A)True
B)False
69
The hair cells of the spiral organ synapse with the _____ nerve.
A)trigeminal
B)trochlear
C)cochlear
D)accessory
70
The sense receptors for sound are called the _____.
A)utricle
B)spiral organ
C)saccule
D)lateral line
71
Statocysts found in cnidarians, molluscs, and crustaceans give information only about the position of the head.
A)True
B)False
72
Static equilibrium depends on the _____.
A)utricle
B)saccule
C)both A and B
73
Continuous movement of fluid in the semicircular canals can cause motion sickness.
A)True
B)False
74
The semicircular canals provide information about _____.
A)static equilibrium
B)dynamic equilibrium
C)the volume of sounds
D)the pitch of sounds
75
The utricle and the saccule are located in the _____.
A)middle ear
B)vestibule
C)cochlea
D)semicircular canals
76
The vestibular nerve carries impulses from the _____to the brain..
A)vestibule
B)semicircular canals
C)both A and B
77
The ampulla in the semicircular canals each respond to head rotation in a different plane of space.
A)True
B)False
78
The _____ of fishes allows them to detect water currents and pressure waves from nearby objects.
A)statocysts
B)flame cells
C)eustachian tubes
D)lateral line system
79
Salmon eventually employ the sense of _________ to locate their specific breeding areas.
A)sight
B)hearing
C)touch
D)smell







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