Question 1

What detects levels of molecules such as oxygen, carbon dioxide, and hydrogen ions in the body?

Accepted Answer

A)  rhodopsin 
B)  photoreceptors 
C)  chemosensory neurons 
D)  thermoreceptors 
E)  nociceptors 
A)  rhodopsin 
B)  photoreceptors 
C)  chemosensory neurons 
D)  thermoreceptors 
E)  nociceptors

Question 2

Magnetoreceptors ____.

Accepted Answer

A)  are well characterized and understood 
B)  are known to rely on the mineral magnetite 
C)  help many types of animals navigate long distances 
D)  have been studied only in homing pigeons 
E)  have been studied primarily in moths 
A)  are well characterized and understood 
B)  are known to rely on the mineral magnetite 
C)  help many types of animals navigate long distances 
D)  have been studied only in homing pigeons 
E)  have been studied primarily in moths

Question 3

Eyeglasses correct deficiencies in the function of the ____ in a near-sighted person.

Accepted Answer

A)  ciliary muscle 
B)  cornea 
C)  iris 
D)  lens 
E)  pupil 
A)  ciliary muscle 
B)  cornea 
C)  iris 
D)  lens 
E)  pupil

Question 4

In a healthy human cochlea, fluid is found in the ____.

Accepted Answer

A)  vestibular canal only 
B)  vestibular and tympanic canals only 
C)  tympanic canal only 
D)  vestibular canal, tympanic canal, and cochlear duct 
E)  cochlear duct only 
A)  vestibular canal only 
B)  vestibular and tympanic canals only 
C)  tympanic canal only 
D)  vestibular canal, tympanic canal, and cochlear duct 
E)  cochlear duct only

Question 5

Figure 41.9 
-Answer the question using the accompanying figure. Which number identifies the structure that vibrates and DIRECTLY creates the pressure waves in the cochlear fluid?

Accepted Answer

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

Question 6

Which receptors allow you to respond to changes in muscle load?

Accepted Answer

A)  muscle spindles 
B)  cupula 
C)  vestibular apparatus 
D)  semicircular canals 
E)  otoliths 
A)  muscle spindles 
B)  cupula 
C)  vestibular apparatus 
D)  semicircular canals 
E)  otoliths

Question 7

Match between columns
                        Premises: amacrine cell
cone
optic nerve
horizontal cell
bipolar cell
ganglion
rod

Accepted Answer

The Answer of D and A and F and C is...

Question 8

Figure 41.9 
-Answer the question using the accompanying figure. Which number identifies the structure that transmits auditory signals to the brain?

Accepted Answer

A)  2 
B)  6 
C)  7 
D)  8 
E)  9 
A)  2 
B)  6 
C)  7 
D)  8 
E)  9

Question 9

Which receptor type helps a gymnast to know when to unfold from a back flip?

Accepted Answer

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

Question 10

An earthworm detects sound ____.

Accepted Answer

A)  through specialized tympanic membranes located near the head 
B)  through a thinned region of the exoskeleton that forms a tympanum 
C)  through general mechanoreceptors on its skin 
D)  by using a specialized organ that measures the frequency of vibration of the surrounding dirt particles 
E)  through a series of mechanoreceptors arranged in a lateral line 
A)  through specialized tympanic membranes located near the head 
B)  through a thinned region of the exoskeleton that forms a tympanum 
C)  through general mechanoreceptors on its skin 
D)  by using a specialized organ that measures the frequency of vibration of the surrounding dirt particles 
E)  through a series of mechanoreceptors arranged in a lateral line

Question 11

The position of the head with respect to gravity is detected by receptors in the basilar membrane.

Accepted Answer

A) True 
 B)False

Question 12

The pitch of a sound depends on the ____of the sound wave.

Accepted Answer

A)  wavelength 
B)  amplitude 
C)  frequency 
D)  type 
E)  substance 
A)  wavelength 
B)  amplitude 
C)  frequency 
D)  type 
E)  substance

Question 13

The optic nerve transmits information from the basilar membrane to the brain.

Accepted Answer

A) True 
 B)False

Question 14

Define sensory adaptation.

Accepted Answer

Sensory adaptation is when a c

Question 15

After a robbery, two witnesses may describe the incident very differently from one another. Explain why.

Accepted Answer

Perception is based on a number of diffe

Question 16

Each cone responds primarily to a single color. What kinds of cones are present in the human retina?

Accepted Answer

A)  Two cones that perceive red or blue light. 
B)  Three cones that perceive red, blue, or green light. 
C)  Three cones that perceive orange, green, or purple light. 
D)  Three cones that perceive red, blue, or yellow light. 
E)  Four cones that perceive red, blue, yellow, or green light. 
A)  Two cones that perceive red or blue light. 
B)  Three cones that perceive red, blue, or green light. 
C)  Three cones that perceive orange, green, or purple light. 
D)  Three cones that perceive red, blue, or yellow light. 
E)  Four cones that perceive red, blue, yellow, or green light.

Question 17

Both rods and cones have four segments, each of which has a specialized function.

Accepted Answer

A) True 
 B)False

Question 18

Eye drops used by an ophthalmologist to dilate the eyes for an eye exam act on the nerves that control the ____.

Accepted Answer

A)  fovea 
B)  lens 
C)  ciliary muscle 
D)  cornea 
E)  iris 
A)  fovea 
B)  lens 
C)  ciliary muscle 
D)  cornea 
E)  iris

Question 19

Which receptor type makes you aware that you just touched a hot object?

Accepted Answer

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

Question 20

Which mechanoreceptor(s) responds to vibrations?

Accepted Answer

A)  free nerve endings only 
B)  Pacinian corpuscles only 
C)  Ruffini endings only 
D)  free nerve endings and Ruffini endings 
E)  Pacinian corpuscles and Meissner's corpuscles 
A)  free nerve endings only 
B)  Pacinian corpuscles only 
C)  Ruffini endings only 
D)  free nerve endings and Ruffini endings 
E)  Pacinian corpuscles and Meissner's corpuscles

Exam 41: Sensory Systems

What detects levels of molecules such as oxygen, carbon dioxide, and hydrogen ions in the body?

Magnetoreceptors ____.

Eyeglasses correct deficiencies in the function of the ____ in a near-sighted person.

In a healthy human cochlea, fluid is found in the ____.

Figure 41.9 -Answer the question using the accompanying figure. Which number identifies the structure that vibrates and DIRECTLY creates the pressure waves in the cochlear fluid?

Which receptors allow you to respond to changes in muscle load?

Figure 41.9 -Answer the question using the accompanying figure. Which number identifies the structure that transmits auditory signals to the brain?

Which receptor type helps a gymnast to know when to unfold from a back flip?

An earthworm detects sound ____.

The position of the head with respect to gravity is detected by receptors in the basilar membrane.

The pitch of a sound depends on the ____of the sound wave.

The optic nerve transmits information from the basilar membrane to the brain.

Define sensory adaptation.

After a robbery, two witnesses may describe the incident very differently from one another. Explain why.

Each cone responds primarily to a single color. What kinds of cones are present in the human retina?

Both rods and cones have four segments, each of which has a specialized function.

Eye drops used by an ophthalmologist to dilate the eyes for an eye exam act on the nerves that control the ____.

Which receptor type makes you aware that you just touched a hot object?

Which mechanoreceptor(s) responds to vibrations?

Introduction to Biological Concepts and Research

Life, Chemistry, and Water

Biological Molecules: the Carbon Compounds of Life

Cells

Membranes and Transport

Energy, Enzymes, and Biological Reactions

Cellular Respiration: Harvesting Chemical Energy

Photosynthesis

Cell Communication

Cell Division and Mitosis

Meiosis: the Cellular Basis of Sexual Reproduction

Mendel, Genes, and Inheritance

Genes, Chromosomes, and Human Genetics

Dna Structure, Replication, and Organization

Gene Expression: From Dna to Protein

Regulation of Gene Expression

Bacterial and Viral Genetics

Dna Technology: Making and Using Genetically Altered Organisms, and Other Applications

Genomes and Proteomes

The Development of Evolutionary Thought

Microevolution: Genetic Changes Within Populations

Speciation

Paleobiology and Macroevolution

Systematic Biology: Phylogeny and Classification

The Origin of Life

Prokaryotes and Viruses

Protists

Seedless Plants

Seed Plants

Fungi

Animal Phylogeny, Acoelomates, and Protostomes

Deuterostomes: Vertebrates and Their Closest Relatives

The Plant Body

Transport in Plants

Plant Nutrition

Reproduction and Development in Flowering Plants

Plant Signals and Responses to the Environment

Introduction to Animal Organization and Physiology

Information Flow and the Neuron

Nervous Systems

The Endocrine System

Muscles, Bones, and Body Movements

The Circulatory System

Defenses Against Disease

Gas Exchange: the Respiratory System

Digestive Systems and Animal Nutrition

Regulating the Internal Environment: Osmoregulation, Excretion, and Thermoregulation

Animal Reproduction

Animal Development

Ecology and the Biosphere

Population Ecology

Population Interactions and Community Ecology

Ecosystems

Biodiversity and Conservation Biology

Animal Behavior

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