Question 1

Mechanoreceptors that react to changes in pressure are part of the ________.

Accepted Answer

A)  human sense of taste 
B)  pain receptors in birds 
C)  human sense of smell 
D)  lateral line systems in fish 
E)  eyes in arthropods 
A)  human sense of taste 
B)  pain receptors in birds 
C)  human sense of smell 
D)  lateral line systems in fish 
E)  eyes in arthropods

Question 2

Sensory transduction of light in the vertebrate retina is accomplished by ________.

Accepted Answer

A)  ganglion cells 
B)  amacrine cells 
C)  bipolar cells 
D)  horizontal cells 
E)  rods and cones 
A)  ganglion cells 
B)  amacrine cells 
C)  bipolar cells 
D)  horizontal cells 
E)  rods and cones

Question 3

A salmon follows a scent trail upstream to find its way back to the stream where it hatched. What type of sensory receptor cell would it use?

Accepted Answer

A)  thermoreceptors 
B)  mechanoreceptors 
C)  chemoreceptors 
D)  electroreceptors 
E)  nociceptors 
A)  thermoreceptors 
B)  mechanoreceptors 
C)  chemoreceptors 
D)  electroreceptors 
E)  nociceptors

Question 4

Which type of receptor would you expect to be most abundant in the antennae of a moth?

Accepted Answer

A)  thermoreceptors 
B)  photoreceptors 
C)  chemoreceptors 
D)  electroreceptors 
E)  nociceptors 
A)  thermoreceptors 
B)  photoreceptors 
C)  chemoreceptors 
D)  electroreceptors 
E)  nociceptors

Question 5

Refer to the accompanying diagram of the ear to answer the question(s) below.  
-Vibrations from the tympanic membrane to the oval window are transmitted by the structures at which numbers?

Accepted Answer

A)  1, 2, 3, and 4 
B)  2, 3, and 4 
C)  3 and 4 
D)  4 
E)  5 
A)  1, 2, 3, and 4 
B)  2, 3, and 4 
C)  3 and 4 
D)  4 
E)  5

Question 6

How would the vision of a fly be affected if several of the axons extending from the ommatidia of its compound eye were damaged?

Accepted Answer

A)  The fly could not detect light in the affected eye. 
B)  The fly would be color blind in the affected eye. 
C)  The fly would have reduced resolution in the affected eye. 
D)  The fly's vision would not be affected, because the remaining functional ommatidia can adjust to compensate for the damaged ones. 
A)  The fly could not detect light in the affected eye. 
B)  The fly would be color blind in the affected eye. 
C)  The fly would have reduced resolution in the affected eye. 
D)  The fly's vision would not be affected, because the remaining functional ommatidia can adjust to compensate for the damaged ones.

Question 7

Refer to the accompanying diagram of the ear to answer the question(s) below.  
-The cochlea is represented by which number?

Accepted Answer

A)  3 
B)  4 
C)  5 
D)  6 
E)  7 
A)  3 
B)  4 
C)  5 
D)  6 
E)  7

Question 8

Odorant molecules activate sensory neurons by ________.

Accepted Answer

A)  deflecting the cilia of hairs cells, leading to the release of neurotransmitter 
B)  binding to rhodopsin, leading to a change in cGMP levels 
C)  passing through ion channels and altering membrane potentials 
D)  binding to membrane-bound receptor proteins of sensory neurons 
E)  altering basilar membrane stiffness to shift response by receptor cells 
A)  deflecting the cilia of hairs cells, leading to the release of neurotransmitter 
B)  binding to rhodopsin, leading to a change in cGMP levels 
C)  passing through ion channels and altering membrane potentials 
D)  binding to membrane-bound receptor proteins of sensory neurons 
E)  altering basilar membrane stiffness to shift response by receptor cells

Question 9

The cochlea is an organ of auditory transduction that contains ________.

Accepted Answer

A)  fluid and cells that can undergo mechanosensory transduction 
B)  air and cells that produce wax 
C)  air and small bones that vibrate in response to sound waves 
D)  fluid with stacks of chemosensory cells 
E)  air and statocysts activated by movement 
A)  fluid and cells that can undergo mechanosensory transduction 
B)  air and cells that produce wax 
C)  air and small bones that vibrate in response to sound waves 
D)  fluid with stacks of chemosensory cells 
E)  air and statocysts activated by movement

Question 10

Tastes and smells are distinct kinds of environmental information in that ________.

Accepted Answer

A)  neural projections from taste receptors reach different parts of the brain than the neural projections from olfactory receptors 
B)  the single area of the cerebral cortex that receives smell and taste signals can distinguish tastes and smells by the pattern of action potentials received 
C)  taste stimulus molecules are airborne, whereas odorant molecules are dissolved in fluids 
D)  distinguishing taste stimulus molecules requires learning, whereas smell discrimination is an innate process 
E)  odorants bind to receptor proteins, but none of the tastant stimuli bind to receptors 
A)  neural projections from taste receptors reach different parts of the brain than the neural projections from olfactory receptors 
B)  the single area of the cerebral cortex that receives smell and taste signals can distinguish tastes and smells by the pattern of action potentials received 
C)  taste stimulus molecules are airborne, whereas odorant molecules are dissolved in fluids 
D)  distinguishing taste stimulus molecules requires learning, whereas smell discrimination is an innate process 
E)  odorants bind to receptor proteins, but none of the tastant stimuli bind to receptors

Exam 44: Animal Sensory Systems

Mechanoreceptors that react to changes in pressure are part of the ________.

Sensory transduction of light in the vertebrate retina is accomplished by ________.

A salmon follows a scent trail upstream to find its way back to the stream where it hatched. What type of sensory receptor cell would it use?

Which type of receptor would you expect to be most abundant in the antennae of a moth?

Refer to the accompanying diagram of the ear to answer the question(s) below. -Vibrations from the tympanic membrane to the oval window are transmitted by the structures at which numbers?

How would the vision of a fly be affected if several of the axons extending from the ommatidia of its compound eye were damaged?

Refer to the accompanying diagram of the ear to answer the question(s) below. -The cochlea is represented by which number?

Odorant molecules activate sensory neurons by ________.

The cochlea is an organ of auditory transduction that contains ________.

Tastes and smells are distinct kinds of environmental information in that ________.

Biology and the Tree of Life

Water and Carbon: the Chemical Basis of Life

Protein Structure and Function

Nucleic Acids and the Rna World

An Introduction to Carbohydrates

Ecosystems and Global Ecology

Lipids, Membranes, and the First Cells

Inside the Cell

Energy and Enzymes: an Introduction to Metabolism

Cellular Respiration and Fermentation

Photosynthesis

Cellcell Interactions

The Cell Cycle

Meiosis

Mendel and the Gene

Dna and the Gene: Synthesis and Repair

How Genes Work

Transcription, Rna Processing, and Translation

Control of Gene Expression in Bacteria

Control of Gene Expression in Eukaryotes

The Molecular Revolution: Biotechnology and Beyond

Genes, Development, and Evolution

Evolution by Natural Selection

Evolutionary Processes

Speciation

Phylogenies and the History of Life

Bacteria and Archaea

Protists

Green Algae and Land Plants

Fungi

An Introduction to Animals

Protostome Animals

Deuterostome Animals

Viruses

Plant Form and Function

Water and Sugar Transport in Plants

Plant Nutrition

Plant Sensory Systems, Signals, and Responses

Plant Reproduction and Development

Animal Form and Function

Water and Electrolyte Balance in Animals

Animal Nutrition

Gas Exchange and Circulation

Animal Nervous Systems

Animal Movement

Chemical Signals in Animals

Animal Reproduction and Development

The Immune System in Animals

An Introduction to Ecology

Behavioral Ecology

Population Ecology

Community Ecology

Biodiversity and Conservation Biology

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