Question 1

The ________ is/are the part(s)of the brain responsible for the perception of smell.

Accepted Answer

A) olfactory bulb 
B) olfactory receptors 
C) olfactory epithelium 
D) olfactory dendrites 
E) corpuscles 
A) olfactory bulb 
B) olfactory receptors 
C) olfactory epithelium 
D) olfactory dendrites 
E) corpuscles

Question 2

Why do things appear mainly black or white to us in low light?

Accepted Answer

A) No colored light is reflected to the eye. 
B) Rods are more sensitive to light than are cones. 
C) Few action potentials are stimulated in low light. 
D) Only white light is available at night. 
E) The diffused light of night does not fall on the fovea. 
A) No colored light is reflected to the eye. 
B) Rods are more sensitive to light than are cones. 
C) Few action potentials are stimulated in low light. 
D) Only white light is available at night. 
E) The diffused light of night does not fall on the fovea.

Question 3

The round shape of the eyeball is maintained by the gel-like:

Accepted Answer

A) cornea. 
B) aqueous humor. 
C) vitreous humor. 
D) choroid. 
E) iris. 
A) cornea. 
B) aqueous humor. 
C) vitreous humor. 
D) choroid. 
E) iris.

Question 4

Prolonged exposure to very loud noises is most likely to damage:

Accepted Answer

A) hair cells. 
B) the bones of the middle ear. 
C) corpuscles. 
D) the auditory nerve. 
E) the auditory canal. 
A) hair cells. 
B) the bones of the middle ear. 
C) corpuscles. 
D) the auditory nerve. 
E) the auditory canal.

Question 5

Which parts of an insect eye are most analogous to the pixel-producing units of a digital camera?

Accepted Answer

A) ommatidia 
B) cones 
C) corpuscles 
D) rods 
E) ganglion cells 
A) ommatidia 
B) cones 
C) corpuscles 
D) rods 
E) ganglion cells

Question 6

The optic nerve:

Accepted Answer

A) is made up of hair cells. 
B) connects the two eyes. 
C) interprets the action potentials it carries. 
D) carries action potentials that originate in the retina. 
E) forms a blind spot at the fovea. 
A) is made up of hair cells. 
B) connects the two eyes. 
C) interprets the action potentials it carries. 
D) carries action potentials that originate in the retina. 
E) forms a blind spot at the fovea.

Question 7

Sensory receptors are grouped by the:

Accepted Answer

A) part of the central nervous system to which they connect. 
B) brain cells they stimulate. 
C) types of action potentials they generate. 
D) stimuli to which they respond. 
A) part of the central nervous system to which they connect. 
B) brain cells they stimulate. 
C) types of action potentials they generate. 
D) stimuli to which they respond.

Question 8

There are three small bones in the middle ear. True or False?

Accepted Answer

A) True 
 B)False

Question 9

Which of the following is a mechanoreceptor?

Accepted Answer

A) olfactory receptor 
B) heat receptor 
C) hair cell 
D) rod or cone 
E) taste bud 
A) olfactory receptor 
B) heat receptor 
C) hair cell 
D) rod or cone 
E) taste bud

Question 10

Which of the following is the sequence of structures through which sound waves travel to stimulate hearing?

Accepted Answer

A) outer ear → tympanic membrane → Eustachian tube → cochlea → oval window 
B) outer ear → oval window → middle ear → tympanic membrane → cochlea 
C) outer ear → Eustachian tube → oval window → tympanic membrane → basilar membrane 
D) outer ear → tympanic membrane → middle ear → oval window → cochlea 
E) outer ear → basilar membrane → inner ear → oval window → Eustachian tube 
A) outer ear → tympanic membrane → Eustachian tube → cochlea → oval window 
B) outer ear → oval window → middle ear → tympanic membrane → cochlea 
C) outer ear → Eustachian tube → oval window → tympanic membrane → basilar membrane 
D) outer ear → tympanic membrane → middle ear → oval window → cochlea 
E) outer ear → basilar membrane → inner ear → oval window → Eustachian tube

Question 11

Which type of taste receptor cell responds to glutamate?

Accepted Answer

A) sweet 
B) sour 
C) salty 
D) bitter 
E) umami 
A) sweet 
B) sour 
C) salty 
D) bitter 
E) umami

Question 12

Which of the following is a sound that exceeds 100 decibels?

Accepted Answer

A) two humans talking 
B) a motorcycle engine 
C) a jet engine 
D) noise from an urban street 
A) two humans talking 
B) a motorcycle engine 
C) a jet engine 
D) noise from an urban street

Question 13

In order for the nose to sense chemicals, they must:

Accepted Answer

A) first enter the mouth. 
B) bind to taste buds. 
C) cause bending of hair cells in the upper nasal cavity. 
D) stimulate the cones. 
E) diffuse into the mucus and bind to receptors. 
A) first enter the mouth. 
B) bind to taste buds. 
C) cause bending of hair cells in the upper nasal cavity. 
D) stimulate the cones. 
E) diffuse into the mucus and bind to receptors.

Question 14

Pain perception is:

Accepted Answer

A) blocked by bradykinin. 
B) caused by glutamate. 
C) unrelated to thermal nociceptors. 
D) affected by potassium ions. 
A) blocked by bradykinin. 
B) caused by glutamate. 
C) unrelated to thermal nociceptors. 
D) affected by potassium ions.

Question 15

Which is the correct sequence of structures through which light passes in the eye?

Accepted Answer

A) cornea → aqueous humor → pupil → lens → vitreous humor → retina 
B) pupil → vitreous humor → aqueous humor → cornea → retina 
C) lens → pupil → cornea → aqueous humor → retina 
D) aqueous humor → cornea → lens → pupil → vitreous humor → retina 
E) cornea → lens → vitreous humor → retina → aqueous humor → pupil 
A) cornea → aqueous humor → pupil → lens → vitreous humor → retina 
B) pupil → vitreous humor → aqueous humor → cornea → retina 
C) lens → pupil → cornea → aqueous humor → retina 
D) aqueous humor → cornea → lens → pupil → vitreous humor → retina 
E) cornea → lens → vitreous humor → retina → aqueous humor → pupil

Question 16

The first membrane in the cochlea to receive vibrations directly from the stirrup is the:

Accepted Answer

A) tectorial membrane. 
B) basilar membrane. 
C) tympanic membrane. 
D) oval window. 
E) round window. 
A) tectorial membrane. 
B) basilar membrane. 
C) tympanic membrane. 
D) oval window. 
E) round window.

Question 17

There are ________ different olfactory receptor proteins in humans that allow us to sense a variety of odors.

Accepted Answer

A) five 
B) a dozen 
C) a few hundred 
D) thousands of 
E) millions of 
A) five 
B) a dozen 
C) a few hundred 
D) thousands of 
E) millions of

Question 18

Receptor potentials cause ________ to be released from sensory receptors.

Accepted Answer

A) protons 
B) axons 
C) neurotransmitters 
D) corpuscles 
E) light 
A) protons 
B) axons 
C) neurotransmitters 
D) corpuscles 
E) light

Question 19

The ________ membrane vibrates the hammer in the middle ear.

Accepted Answer

A) tympanic 
B) auditory 
C) vestibular 
D) basilar 
E) tectorial 
A) tympanic 
B) auditory 
C) vestibular 
D) basilar 
E) tectorial

Question 20

People who wear contact lenses or glasses have a defect in the:

Accepted Answer

A) length of the eyeball. 
B) rod cells. 
C) cone cells. 
D) iris. 
E) blind spot. 
A) length of the eyeball. 
B) rod cells. 
C) cone cells. 
D) iris. 
E) blind spot.

Exam 39: The Senses

The ________ is/are the part(s)of the brain responsible for the perception of smell.

Why do things appear mainly black or white to us in low light?

The round shape of the eyeball is maintained by the gel-like:

Prolonged exposure to very loud noises is most likely to damage:

Which parts of an insect eye are most analogous to the pixel-producing units of a digital camera?

The optic nerve:

Sensory receptors are grouped by the:

There are three small bones in the middle ear. True or False?

Which of the following is a mechanoreceptor?

Which of the following is the sequence of structures through which sound waves travel to stimulate hearing?

Which type of taste receptor cell responds to glutamate?

Which of the following is a sound that exceeds 100 decibels?

In order for the nose to sense chemicals, they must:

Pain perception is:

Which is the correct sequence of structures through which light passes in the eye?

The first membrane in the cochlea to receive vibrations directly from the stirrup is the:

There are ________ different olfactory receptor proteins in humans that allow us to sense a variety of odors.

Receptor potentials cause ________ to be released from sensory receptors.

The ________ membrane vibrates the hammer in the middle ear.

People who wear contact lenses or glasses have a defect in the:

An Introduction to Life on Earth

Atoms, Molecules, and Life

Biological Molecules

Cell Structure and Function

Cell Membrane Structure and Function

Energy Flow in the Life of a Cell

Capturing Solar Energy: Photosynthesis

Harvesting Energy: Glycolysis and Cellular Respiration

The Continuity of Life: Cellular Reproduction

Patterns of Inheritance

Dna: the Molecule of Heredity

Gene Expression and Regulation

Biotechnology

Principles of Evolution

How Populations Evolve

The Origin of Species

The History of Life

Systematics: Seeking Order Amidst Diversity

The Diversity of Prokaryotes and Viruses

The Diversity of Protists

The Diversity of Plants

The Diversity of Fungi

Animal Diversity I: Invertebrates

Animal Diversity Ii: Vertebrates

Animal Behavior

Population Growth and Regulation

Community Interactions

How Do Ecosystems Work

Earths Diverse Ecosystems

Conserving Earths Biodiversity

Homeostasis and the Organization of the Animal Body

Circulation

Respiration

Nutrition and Digestion

The Urinary System

Defenses Against Disease

Chemical Control of the Animal Body: the Endocrine System

The Nervous System

Action and Support: the Muscles and Skeleton

Animal Reproduction

Animal Development

Plant Anatomy and Nutrient Transport

Plant Reproduction and Development

Plant Responses to the Environment

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