Question 1

If genetically engineered bees could express a receptor for TNT in their olfactory neurons,how would the bees respond to the presence of TNT?

Accepted Answer

A) It would ignore the stimulus. 
B) It would be attracted. 
C) It would be repelled. 
D) It would depend on which olfactory neuron expresses the transgene. 
A) It would ignore the stimulus. 
B) It would be attracted. 
C) It would be repelled. 
D) It would depend on which olfactory neuron expresses the transgene.

Question 2

What sensory equipment is required for an animal to have binocular vision?

Accepted Answer

A) eyes located to the sides of the head 
B) forward-facing eyes 
C) a camera-type eye with multiple lenses 
D) infrared vision 
E) ultraviolet vision 
A) eyes located to the sides of the head 
B) forward-facing eyes 
C) a camera-type eye with multiple lenses 
D) infrared vision 
E) ultraviolet vision

Question 3

What happens to a retinal photopigment when it captures a photon?

Accepted Answer

A) It releases an electron. 
B) It fluoresces. 
C) It changes shape. 
D) It begins to vibrate. 
E) It does nothing. 
A) It releases an electron. 
B) It fluoresces. 
C) It changes shape. 
D) It begins to vibrate. 
E) It does nothing.

Question 4

What sequence of events leads to the perception of a visual scene?
 I.In response to light,retinal dissociates from rod and cone photopigments,hyperpolarizing the photoreceptor cells and leading to activation of bipolar neurons.
II)Action potentials are propagated through ganglion cells,whose axons project to the occipital lobe of the brain.
III)In response to light,rod and cone photoreceptors depolarize,causing increased release of neurotransmitter and activation of bipolar neurons.

Accepted Answer

A) I then III 
B) III then II 
C) III then I then II 
D) I then II then III 
E) I then II 
A) I then III 
B) III then II 
C) III then I then II 
D) I then II then III 
E) I then II

Question 5

What information would best help you distinguish what type of sensation a sensory neuron transmits?

Accepted Answer

A) the rate of action potential firing 
B) the proteins it expresses most abundantly 
C) the part of the brain it transmits signals to 
D) the amplitude of action potentials 
E) the diameter of the axon 
A) the rate of action potential firing 
B) the proteins it expresses most abundantly 
C) the part of the brain it transmits signals to 
D) the amplitude of action potentials 
E) the diameter of the axon

Question 6

Which of type of information is NOT communicated by proprioceptors?

Accepted Answer

A) muscle temperature 
B) limb movement 
C) muscle position 
D) muscle contraction 
E) muscle stretch 
A) muscle temperature 
B) limb movement 
C) muscle position 
D) muscle contraction 
E) muscle stretch

Question 7

Which of the following are components of vertebrate gravity receptors? 
I-Utricle and saccule chambers of a membranous labyrinth.
II-Hair cells with stereocilia and kinocilium.
III-Hairlike processes embedded with otolith membrane,a gelatinous membrane containing calcium carbonate crystals.
IV-Peripheral chemoreceptors.

Accepted Answer

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

Question 8

What are the receptors called that transmit impulses that are perceived by the brain as pain?

Accepted Answer

A) baroreceptors 
B) chemoreceptors 
C) nociceptors 
D) thermoreceptors 
E) propioceptors 
A) baroreceptors 
B) chemoreceptors 
C) nociceptors 
D) thermoreceptors 
E) propioceptors

Exam 43: Sensory Systems

If genetically engineered bees could express a receptor for TNT in their olfactory neurons,how would the bees respond to the presence of TNT?

What sensory equipment is required for an animal to have binocular vision?

What happens to a retinal photopigment when it captures a photon?

What information would best help you distinguish what type of sensation a sensory neuron transmits?

Which of type of information is NOT communicated by proprioceptors?

What are the receptors called that transmit impulses that are perceived by the brain as pain?

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