Question 1

Which of the following receptors does not involve depolarization leading to an action potential in a sensory neuron?

Accepted Answer

A)  mechanoreceptors
B)  G-protein receptors
C)  chemoreceptors
D)  photoreceptors
E)  exteroceptors and interoceptorsF) C) and D)
G) A) and B)

Question 2

Exteroceptors can sense all of the following stimuli except

Accepted Answer

A)  gravity.
B)  smell.
C)  light.
D)  muscle tension.
E)  sound.F) None of the above
G) B) and D)

Question 3

In the typical vertebrate,which letter best describes the direction of incoming light?

Accepted Answer

A)  A
B)  B
C)  C
D)  D
E)  All of the directions are possiblE.F) None of the above
G) C) and D)

Question 4

The statoliths of a lobster are replaced with iron filings.A strong magnetic field is produced on the top of the lobster's tank.What is the likely response of the lobster?

Accepted Answer

A)  The lobster's dorsal surface sticks to the top of the tank and it is unable to move.
B)  The lobster would tend to remain upside down gripping the underside of the top of the tank.
C)  The lobster would turn upside down and remain on the bottom of the tank.
D)  Nothing would occur.
E)  The lobster would spin around continuously.F) A) and C)
G) D) and E)

Question 5

When stimulated by the binding of specific chemicals,the proteins in the membranes of taste bud receptors and olfactory neurons

Accepted Answer

A)  depolarize.
B)  repolarize.
C)  become polarized.
D)  produce action potentials.
E)  release neurotransmitters.F) A) and C)
G) C) and D)

Question 6

The receptors that are shorter and responsible for color vision are

Accepted Answer

A)  rods.
B)  cones.
C)  bipolar cells.
D)  glial cells.
E)  ganglion cells.F) A) and B)
G) A) and E)

Question 7

The photopigment of rods is called

Accepted Answer

A)  photopsin.
B)  rhodopsin.
C)  opsin.
D)  carotene.
E)  melanin.F) A) and B)
G) A) and C) B

Question 8

In this figure,what is the best description of the mechanism occurring on the cell membrane?

Accepted Answer

A)  The cell membrane is being excited.
B)  The cell membrane is being inhibited.
C)  The cell membrane is producing an action potential.
D)  The cell membrane is hyperpolarizing.
E)  The cell membrane is depolarizing.F) A) and D)
G) A) and E) D

Question 9

The receptors of the skin,called the cutaneous receptors,are classified as interoceptors.These are good examples of the specialization of receptor structure and function.These receptors respond to

Accepted Answer

A)  heat and cold.
B)  pain,touch,and pressure.
C)  chemicals,light,and sound.
D)  heat,cold,pain,touch,and pressure.
E)  heat,cold,pain,touch,pressure,chemicals,light,and sound.F) B) and E)
G) A) and E)

Question 10

Different nociceptors may respond to all of the following except

Accepted Answer

A)  extremes in temperature.
B)  very intense mechanical stimulation.
C)  specific chemicals in the extracellular fluid.
D)  chemicals released by injured cells.
E)  external odorant molecules.F) B) and E)
G) B) and D)

Question 11

Which of these structures is not found in an octopus eye but is found in a human eye?

Accepted Answer

A)  retina
B)  lens
C)  optic nerve
D)  blind spot
E)  conesF) B) and E)
G) A) and B)

Question 12

The sensory structures that enable the brains of most invertebrates to determine the orientation of the body with respect to gravity are called

Accepted Answer

A)  carotid bodies.
B)  statocysts.
C)  Ruffini endings.
D)  baroreceptors.
E)  interoceptors.F) All of the above
G) B) and D)

Question 13

Binocular vision is possible in animals that have

Accepted Answer

A)  their eyes located to the sides of the head.
B)  their eyes facing forward.
C)  many eyes located at many parts of the head.
D)  infrared vision.
E)  a sense of depth.F) C) and E)
G) A) and B) B

Question 14

Choose the letter of the best match from the following:
-Meissner's corpuscle.

Accepted Answer

A)  tonic receptors located near the surface of the skin
B)  pressure sensitive receptors in the subcutaneous layer
C)  receptors located on the face and fingertipsD) A) and B)
E) A) and C)

Question 15

Vertebrates contain receptors for all of the following senses except

Accepted Answer

A)  hearing.
B)  taste.
C)  smell.
D)  humidity.
E)  vision.F) A) and C)
G) B) and C)

Question 16

All input from sensory neurons to the central nervous system arrives in the same form,as ____________ propagated by afferent sensory neurons.Perception of the stimuli about type and intensity depend on the projection of the impulse to which part of the brain and its frequency by the sensory neuron.

Accepted Answer

A)  action potentials
B)  receptor potentials
C)  reflexes
D)  frequency localizations
E)  thresholdsF) B) and D)
G) None of the above

Question 17

Choose the letter of the best match from the following:
-Merkle cell.

Accepted Answer

A)  tonic receptors located near the surface of the skin
B)  pressure sensitive receptors in the subcutaneous layer
C)  receptors located on the face and fingertipsD) All of the above
E) None of the above

Question 18

Our visual acuity is greatest when

Accepted Answer

A)  an image is focused on the rods outside the foveA.
B)  an image is focused on the cones outside the fovea.
C)  an image is focused on the rods of the fovea.
D)  an image is focused on the cones of the fovea.
E)  an image is focused on the rods and cones in any area of the retina as long as there is ample light.F) C) and D)
G) A) and B)

Question 19

Electroreceptors are found in all of the following animals except

Accepted Answer

A)  bony fish.
B)  sharks.
C)  duck-bill platypus.
D)  skates.
E)  pit viper snakes.F) C) and D)
G) B) and D)

Question 20

Which of the following cells are not found in the retina?

Accepted Answer

A)  rods
B)  cones
C)  bipolar cells
D)  glial cells
E)  ganglion cellsF) C) and E)
G) A) and E)

Exam 45: Sensory Systems

Which of the following receptors does not involve depolarization leading to an action potential in a sensory neuron?

Correct AnswerverifiedShow Answer

Exteroceptors can sense all of the following stimuli except

Correct AnswerverifiedShow Answer

In the typical vertebrate,which letter best describes the direction of incoming light?

Correct AnswerverifiedShow Answer

The statoliths of a lobster are replaced with iron filings.A strong magnetic field is produced on the top of the lobster's tank.What is the likely response of the lobster?

Correct AnswerverifiedShow Answer

When stimulated by the binding of specific chemicals,the proteins in the membranes of taste bud receptors and olfactory neurons

Correct AnswerverifiedShow Answer

The receptors that are shorter and responsible for color vision are

Correct AnswerverifiedShow Answer

The photopigment of rods is called

Correct AnswerverifiedB

In this figure,what is the best description of the mechanism occurring on the cell membrane?

Correct AnswerverifiedD

The receptors of the skin,called the cutaneous receptors,are classified as interoceptors.These are good examples of the specialization of receptor structure and function.These receptors respond to

Correct AnswerverifiedShow Answer

Different nociceptors may respond to all of the following except

Correct AnswerverifiedShow Answer

Which of these structures is not found in an octopus eye but is found in a human eye?

Correct AnswerverifiedShow Answer

The sensory structures that enable the brains of most invertebrates to determine the orientation of the body with respect to gravity are called

Correct AnswerverifiedShow Answer

Binocular vision is possible in animals that have

Correct AnswerverifiedB

Choose the letter of the best match from the following: -Meissner's corpuscle.

Correct AnswerverifiedShow Answer

Vertebrates contain receptors for all of the following senses except

Correct AnswerverifiedShow Answer

All input from sensory neurons to the central nervous system arrives in the same form,as ____________ propagated by afferent sensory neurons.Perception of the stimuli about type and intensity depend on the projection of the impulse to which part of the brain and its frequency by the sensory neuron.

Correct AnswerverifiedShow Answer

Choose the letter of the best match from the following: -Merkle cell.

Correct AnswerverifiedShow Answer

Our visual acuity is greatest when

Correct AnswerverifiedShow Answer

Electroreceptors are found in all of the following animals except

Correct AnswerverifiedShow Answer

Which of the following cells are not found in the retina?

Correct AnswerverifiedShow Answer

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D

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B

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