Question 1

Since chemoreceptors are found in arthropods,crustaceans,vertebrates and all other animals it is believed that chemoreception is the most primitive sense.

Accepted Answer

A) True 
 B)False

Question 2

Which statement about chemoreceptors is NOT true?

Accepted Answer

A) Chemoreceptors are universally found in animals. 
B) Chemoreceptors are found all over the body surface in humans. 
C) Chemoreceptors are concentrated on the auricles of the head in planaria. 
D) Chemoreceptors are found on antennae and mouthparts in insects and other arthropods. 
E) Chemoreceptors are thought to be the most primitive sensory receptor to have developed in animals. 
A) Chemoreceptors are universally found in animals. 
B) Chemoreceptors are found all over the body surface in humans. 
C) Chemoreceptors are concentrated on the auricles of the head in planaria. 
D) Chemoreceptors are found on antennae and mouthparts in insects and other arthropods. 
E) Chemoreceptors are thought to be the most primitive sensory receptor to have developed in animals.

Question 3

Which of the following lists correctly traces the path of a sound vibration as it moves through the ear?

Accepted Answer

A) auditory canal-tympanic membrane-malleus-incus-stapes-oval window-cochlea-cochlear nerve 
B) auditory canal-malleus-incus-stapes-tympanic membrane-oval window-cochlea-cochlear nerve 
C) auditory canal-tympanic membrane-malleus-incus-stapes-cochlea-oval window-cochlear nerve 
D) auditory canal-tympanic membrane-oval window-cochlea-malleus-incus-stapes-cochlear nerve 
E) auditory canal-malleus-incus-stapes-oval window-tympanic membrane-cochlea-cochlear nerve 
A) auditory canal-tympanic membrane-malleus-incus-stapes-oval window-cochlea-cochlear nerve 
B) auditory canal-malleus-incus-stapes-tympanic membrane-oval window-cochlea-cochlear nerve 
C) auditory canal-tympanic membrane-malleus-incus-stapes-cochlea-oval window-cochlear nerve 
D) auditory canal-tympanic membrane-oval window-cochlea-malleus-incus-stapes-cochlear nerve 
E) auditory canal-malleus-incus-stapes-oval window-tympanic membrane-cochlea-cochlear nerve

Question 4

The sense of rotational equilibrium is accomplished by hair cells found in the

Accepted Answer

A) cochlear duct. 
B) outer ear. 
C) middle ear. 
D) ampullae. 
E) organ of Corti. 
A) cochlear duct. 
B) outer ear. 
C) middle ear. 
D) ampullae. 
E) organ of Corti.

Question 5

In nearsightedness,light rays are brought into focus

Accepted Answer

A) in front of the retina. 
B) in back of the retina. 
C) on the retina. 
D) on the hair cells of the ampulla. 
E) unevenly across the retina. 
A) in front of the retina. 
B) in back of the retina. 
C) on the retina. 
D) on the hair cells of the ampulla. 
E) unevenly across the retina.

Question 6

Mail-order catalogs often advertise a device for repelling irritating insects.One device has a frequency range from 30,000 to 65,000 cycles per second (Hz).Humans hear from roughly 50 to 15,000 cycles per second.In designing an experiment to determine if this device actually does repel a certain insect,what question(s)should you ask?

Accepted Answer

A) Is the target insect able to perceive a sound between these frequencies? 
B) Does the insect approach this sound device at a rate higher than random chance? 
C) Does the insect move away from this sound device at a rate higher than random chance? 
D) Does the insect produce any sounds within this range that would lead to a biological function to perceiving such frequencies? 
E) All of the choices are correct. 
A) Is the target insect able to perceive a sound between these frequencies? 
B) Does the insect approach this sound device at a rate higher than random chance? 
C) Does the insect move away from this sound device at a rate higher than random chance? 
D) Does the insect produce any sounds within this range that would lead to a biological function to perceiving such frequencies? 
E) All of the choices are correct.

Question 7

Which of the following visual association with its related cause is NOT correct?

Accepted Answer

A) color blindness - lack of red or green cones 
B) eyestrain - muscle fatigue from constant contraction of the ciliary muscle 
C) cataracts - lens becomes opaque with aging and sun exposure 
D) nearsighted - unable to see near objects in detail 
A) color blindness - lack of red or green cones 
B) eyestrain - muscle fatigue from constant contraction of the ciliary muscle 
C) cataracts - lens becomes opaque with aging and sun exposure 
D) nearsighted - unable to see near objects in detail

Question 8

If a person were to suffer a second degree burn to their fingers,which group of receptors would suffer the greatest amount of damage?

Accepted Answer

A) Meissner corpuscles 
B) Merkel disks 
C) Pacinian corpuscles 
D) Ruffini endings 
A) Meissner corpuscles 
B) Merkel disks 
C) Pacinian corpuscles 
D) Ruffini endings

Question 9

Glaucoma is caused by an increase in intraocular pressure due to inadequate drainage of the

Accepted Answer

A) vitreous humor. 
B) aqueous humor. 
C) venous blood. 
D) cochlear duct. 
E) ampulla. 
A) vitreous humor. 
B) aqueous humor. 
C) venous blood. 
D) cochlear duct. 
E) ampulla.

Question 10

Which of the following statements about the rods and cones in the eye is NOT true?

Accepted Answer

A) The cones are better able to detect shades of color. 
B) The rods are involved in black and white vision. 
C) Rods and cones work together to detect the full image. 
D) Rhodopsin is the molecule associated with vision. 
E) Rods are activated by bright light and cones are better suited to night vision. 
A) The cones are better able to detect shades of color. 
B) The rods are involved in black and white vision. 
C) Rods and cones work together to detect the full image. 
D) Rhodopsin is the molecule associated with vision. 
E) Rods are activated by bright light and cones are better suited to night vision.

Exam 38: Sense Organs

Since chemoreceptors are found in arthropods,crustaceans,vertebrates and all other animals it is believed that chemoreception is the most primitive sense.

Which statement about chemoreceptors is NOT true?

Which of the following lists correctly traces the path of a sound vibration as it moves through the ear?

The sense of rotational equilibrium is accomplished by hair cells found in the

In nearsightedness,light rays are brought into focus

Which of the following visual association with its related cause is NOT correct?

If a person were to suffer a second degree burn to their fingers,which group of receptors would suffer the greatest amount of damage?

Glaucoma is caused by an increase in intraocular pressure due to inadequate drainage of the

Which of the following statements about the rods and cones in the eye is NOT true?

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