Question 1

What is one purpose for mapping regions of the brain to show the type of activity that occurs there?
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Question 2

Normally,a person has three types of rhodopsin in his or her cone cells and another type in the rod cells.What would happen to the person's vision if one of the three types of cone cells was missing or became nonfunctional?

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Question 3

Refer to the diagram below showing the response of a muscle spindle to a stretch stimulus.What happens to the size and frequency of action potentials as the strength of the stretch stimulus increases?

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Question 4

Define synaptic plasticity,and explain why it is important.Give an example.

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Question 5

Which structure or structures in the human ear enable it to detect sounds of differing frequencies? Briefly explain how this occurs.

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Question 6

Describe the steps of an experiment that could be designed to determine the part of the brain involved in mathematical learning.

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Question 7

Cnidarians,such as corals and sea anemones,are sedentary,or nearly so.These animals have nerve nets,rather than centralized nervous systems with cephalization.Why would sedentary animals be less likely to have evolved these specializations?

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Question 8

Give one example of an ionotropic receptor and one example of a metabotropic receptor.Explain briefly how their mechanisms of action differ.

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Question 9

Refer to the diagrams below.The top diagram shows a section through the cell layers of the human retina.The bottom diagram shows a section of a single ommatidium from an insect eye.Explain one way in which these two structures are similar and one way in which they are different.

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Question 10

Refer to the diagram below.In this experiment,how did the intensity of light affect the membrane potential?

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Question 11

Refer to the diagrams below.What is one possible reason for the presence of ganglia in the insect's nervous system,but not in the dog's?

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Quiz 34: Neurons, Sense Organs, and Nervous Systems

What is one purpose for mapping regions of the brain to show the type of activity that occurs there? Answer Key