Question 1

Which includes all of the components that make up the Organ of Corti?

Accepted Answer

A)  the basilar membrane only
B)  the tectorial and basilar membranes
C)  hair cells and associated neurons only
D)  hair cells and the tectorial membrane
E)  hair cells and the basilar and tectorial membranes

Question 2

Which of the following statements about the lateral line system is NOT correct?

Accepted Answer

A)  allows fish to sense objects based on the pressure waves they produce
B)  allows fish to sense objects based on the low-frequency vibrations they produce
C)  allows fish to swim in synchrony with a school of other members of its species
D)  provides the fish with the ability to see images
E)  allows a blind cave fish to sense the water patterns flowing past its body

Question 3

Which of the following statements regarding vision is NOT true?

Accepted Answer

A)  Vertebrate rods and cones hyperpolarize in response to light.
B)  Insects and birds can often see into the ultraviolet range.
C)  Bright light will often produce action potentials in both rods and cones.
D)  Rhodopsin is found in the membrane of rods.

Question 4

What does the middle ear consist of?

Accepted Answer

A)  three ossicle bones
B)  the ear canal
C)  the ear drum
D)  the vestibular canal
E)  the tympanic canal

Question 5

What are the receptors of sharks that can detect disturbances in electrical fields called?

Accepted Answer

A)  Organs of Corti
B)  pacinian corpuscles
C)  lateral line canals
D)  nodes of Ranvier
E)  ampullae of Lorenzini

Question 6

What is the primary difference in how touch sensation and hearing sensation are conveyed?

Accepted Answer

A)  the neurotransmitters secreted by the sensory neurons
B)  the way that the axons physically connect to the brain stem
C)  the shape of the sensory axons
D)  the proteins that transduce the chemical signal in the brain
E)  the part of the brain that receives the signal

Question 7

If genetically engineered bees could express a receptor for TNT in their olfactory neurons,how could the transgenic bees be useful for detecting explosives?

Accepted Answer

A)  Watch for death of the bee when the neuron absorbs TNT.
B)  Use MRI to monitor the brain activity of the bee.
C)  Train bees to respond in a predictable way when the TNT neuron is activated by conditioning them to expect an associated food reward.
D)  Grind up the bee's antennae for use in a TNT ELISA assay.

Question 8

Honeybees can detect a variety of odorants through olfactory receptors on their antennae.You genetically engineer a receptor to be gated by the explosive chemical TNT,and use a transgene to express the receptor in honeybee olfactory neurons.What would this provide to the bee?

Accepted Answer

A)  the ability to taste TNT
B)  it would have no effect
C)  the ability to smell TNT
D)  the ability to collect TNT molecules
E)  the ability to see TNT

Question 9

Since the optic nerve must pass through the retinal layer,we all have a blind spot devoid of light receptors.This normally goes unnoticed,since the brain attempts to compensate for missing sensory information by filling it in based on surrounding patterns.Which step of the sensory pathway is represented by perceptual filling-in of the physiological blind spot?

Accepted Answer

A)  interpretation
B)  stimulus
C)  transduction into receptor potential
D)  action potential transmission

Question 10

Which is NOT a part of the vertebrate eye?

Accepted Answer

A)  cornea
B)  retina
C)  iris
D)  cochlea
E)  pupil

Question 11

Which of the following statements would explains the importance of Pax gene families in animals?

Accepted Answer

A)  Pax genes are believed to grow legs in fruit flies.
B)  Pax genes are needed to form chemoreceptors in animals.
C)  Pax genes are completely unrelated and found in a variety of animals by coincidence.
D)  Pax gene families are found in a variety of animal phyla and help to show the evolutionary relationship of eye development.

Question 12

Which is NOT a stimulus that exteroceptors can sense?

Accepted Answer

A)  gravity
B)  smell
C)  light
D)  muscle tension
E)  sound

Question 13

The statoliths of a lobster are replaced with iron filings,and a strong magnetic field is produced at the top of its tank.How will the lobster respond?

Accepted Answer

A)  Its dorsal surface will stick to the top of the tank and it will be unable to move.
B)  It will turn upside down and grip the underside of the tank lid.
C)  It will turn upside down and remain at the bottom of the tank.
D)  It will not respond in any way.
E)  It will continuously spin in circles.

Question 14

In the vertebrate eye,what structure controls the amount of light that reaches the retina?

Accepted Answer

A)  fovea
B)  cornea
C)  iris
D)  lens
E)  sclera

Question 15

The human retina is composed of three cell layers.Which represents the correct order of these layers,starting with the layer that is closest to the iris?

Accepted Answer

A)  ganglion cells → bipolar cells → rods and cones
B)  optic nerve cells → rods and cones → bipolar cells
C)  rods and cones → bipolar cells → ganglion cells
D)  bipolar cells → ganglion cells → rods and cones
E)  rods and cones → optic nerve cells → bipolar cells

Question 16

Choose the receptor that is NOT correctly matched with its function.

Accepted Answer

A)  proprioceptor - monitors stretch of muscle fibers
B)  baroreceptor - monitors hydrostatic pressure in blood vessels
C)  nociceptor - transmits signals that the brain interprets as pain
D)  chemoreceptor - perceives taste and smell stimuli
E)  peripheral chemoreceptor - monitors the pH of the cerebrospinal fluid

Question 17

What are the categories of taste sensation?

Accepted Answer

A)  sweet,salty,sour,creamy,umami
B)  sweet,sour,salty,bitter,umami
C)  sweet,salty,bitter,chocolate,coffee
D)  sweet,sour,salty,creamy,savory

Question 18

Pit vipers are the only known vertebrates with an ability to detect a certain type of stimulus.What can these snakes sense?

Accepted Answer

A)  infrared radiation
B)  ultraviolet radiation
C)  microwave radiation
D)  visible light radiation
E)  none of these

Question 19

Each type of cone cell is stimulated by a different color of light.In humans,a colorful scene is perceived as a combination of signals from three cone types.Which colors correspond to these three cones? 
I-Red
II-Yellow
III-Orange
IV-Blue
V-Green
VI-Purple

Accepted Answer

A)  I,II,and III
B)  I,III,and IV
C)  I,IV,and V
D)  I,V,and VI
E)  II,IV,and VI

Question 20

In the vertebrate eye,what structure is light focused onto?

Accepted Answer

A)  pupil
B)  lens
C)  retina
D)  sclera
E)  iris

Exam 43: Sensory Systems

If genetically engineered bees could express a receptor for TNT in their olfactory neurons,how could the transgenic bees be useful for detecting explosives?

Correct Answer
verified

Choose the receptor that is NOT correctly matched with its function.

Correct Answer
verified

What is the primary difference in how touch sensation and hearing sensation are conveyed?

Correct Answer
verified

Each type of cone cell is stimulated by a different color of light.In humans,a colorful scene is perceived as a combination of signals from three cone types.Which colors correspond to these three cones? I-Red II-Yellow III-Orange IV-Blue V-Green VI-Purple

Correct Answer
verified

Which of the following statements regarding vision is NOT true?

Correct Answer
verified

Pit vipers are the only known vertebrates with an ability to detect a certain type of stimulus.What can these snakes sense?

Correct Answer
verified

Correct Answer
verified

Honeybees can detect a variety of odorants through olfactory receptors on their antennae.You genetically engineer a receptor to be gated by the explosive chemical TNT,and use a transgene to express the receptor in honeybee olfactory neurons.What would this provide to the bee?

Correct Answer
verified

Which includes all of the components that make up the Organ of Corti?

Correct Answer
verified

In the vertebrate eye,what structure is light focused onto?

Correct Answer
verified

Which of the following statements about the lateral line system is NOT correct?

Correct Answer
verified

Which of the following statements would explains the importance of Pax gene families in animals?

Correct Answer
verified

What does the middle ear consist of?

Correct Answer
verified

What are the categories of taste sensation?

Correct Answer
verified

What are the receptors of sharks that can detect disturbances in electrical fields called?

Correct Answer
verified

The statoliths of a lobster are replaced with iron filings,and a strong magnetic field is produced at the top of its tank.How will the lobster respond?

Correct Answer
verified

In the vertebrate eye,what structure controls the amount of light that reaches the retina?

Correct Answer
verified

Which is NOT a stimulus that exteroceptors can sense?

Correct Answer
verified

Which is NOT a part of the vertebrate eye?

Correct Answer
verified

The human retina is composed of three cell layers.Which represents the correct order of these layers,starting with the layer that is closest to the iris?

Correct Answer
verified

Exam 43: Sensory Systems

If genetically engineered bees could express a receptor for TNT in their olfactory neurons,how could the transgenic bees be useful for detecting explosives?

Correct AnswerverifiedShow Answer

Choose the receptor that is NOT correctly matched with its function.

Correct AnswerverifiedShow Answer

What is the primary difference in how touch sensation and hearing sensation are conveyed?

Correct AnswerverifiedShow Answer

Each type of cone cell is stimulated by a different color of light.In humans,a colorful scene is perceived as a combination of signals from three cone types.Which colors correspond to these three cones? I-Red II-Yellow III-Orange IV-Blue V-Green VI-Purple

Correct AnswerverifiedShow Answer

Which of the following statements regarding vision is NOT true?

Correct AnswerverifiedShow Answer

Pit vipers are the only known vertebrates with an ability to detect a certain type of stimulus.What can these snakes sense?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Honeybees can detect a variety of odorants through olfactory receptors on their antennae.You genetically engineer a receptor to be gated by the explosive chemical TNT,and use a transgene to express the receptor in honeybee olfactory neurons.What would this provide to the bee?

Correct AnswerverifiedShow Answer

Which includes all of the components that make up the Organ of Corti?

Correct AnswerverifiedShow Answer

In the vertebrate eye,what structure is light focused onto?

Correct AnswerverifiedShow Answer

Which of the following statements about the lateral line system is NOT correct?

Correct AnswerverifiedShow Answer

Which of the following statements would explains the importance of Pax gene families in animals?

Correct AnswerverifiedShow Answer

What does the middle ear consist of?

Correct AnswerverifiedShow Answer

What are the categories of taste sensation?

Correct AnswerverifiedShow Answer

What are the receptors of sharks that can detect disturbances in electrical fields called?

Correct AnswerverifiedShow Answer

The statoliths of a lobster are replaced with iron filings,and a strong magnetic field is produced at the top of its tank.How will the lobster respond?

Correct AnswerverifiedShow Answer

In the vertebrate eye,what structure controls the amount of light that reaches the retina?

Correct AnswerverifiedShow Answer

Which is NOT a stimulus that exteroceptors can sense?

Correct AnswerverifiedShow Answer

Which is NOT a part of the vertebrate eye?

Correct AnswerverifiedShow Answer

The human retina is composed of three cell layers.Which represents the correct order of these layers,starting with the layer that is closest to the iris?

Correct AnswerverifiedShow Answer

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