Question 1

During exhalation, air moves from the bronchi directly into the alveoli.
____________________

Accepted Answer

A) True 
 B)False  False

Question 2

During swallowing, __________ closes off the __________ so food cannot enter the lower airway.

Accepted Answer

A)  the pleural membrane; trachea 
B)  cartilage; larynx 
C)  the pharynx; esophagus 
D)  the Adam's apple; trachea 
E)  the epiglottis; larynx 
A)  the pleural membrane; trachea 
B)  cartilage; larynx 
C)  the pharynx; esophagus 
D)  the Adam's apple; trachea 
E)  the epiglottis; larynx E

Question 3

A respiratory system is needed if an organism is too __________ to rely on the diffusion of gases through the body's tissues.

Accepted Answer

A)  small 
B)  long 
C)  thick 
D)  thin 
E)  round 
A)  small 
B)  long 
C)  thick 
D)  thin 
E)  round C

Question 4

Both aquatic and terrestrial organisms must have __________ across which gas exchange can take place.

Accepted Answer

A)  a respiratory system 
B)  tracheal tubes 
C)  gills and lungs 
D)  stratified squamous epithelial tissue 
E)  a moist surface 
A)  a respiratory system 
B)  tracheal tubes 
C)  gills and lungs 
D)  stratified squamous epithelial tissue 
E)  a moist surface

Question 5

In humans, the oxygen concentration of the blood is the most important chemical stimulus for regulating the rate of respiration.
____________________

Accepted Answer

A) True 
 B)False

Question 6

The parabronchi of birds are open at both ends.
____________________

Accepted Answer

A) True 
 B)False

Question 7

MATCHING
Match the part of the human respiratory system with its decription.
a.alveoli
e.nasal cavity
b.bronchiole
f.pharynx
c.bronchus
g.trachea
d.larynx
-After leaving the larynx, inhaled air passes next into this structure.

Accepted Answer

The answer of MATCHING
Match the part of the human respiratory...

Question 8

Figure 46-4
Use the figure to answer the corresponding question(s).   Oxygen-hemoglobin dissociation curves at three different pH levels
-If a carbonic anhydrase inhibitor was added to blood:

Accepted Answer

A)  the level of CO2 in the blood would increase. 
B)  the level of CO2 in the blood would decrease. 
C)  the level of CO2 in the blood would remain the same. 
D)  the pH of the blood would remain the same. 
E)  the pH of the blood would decrease. 
A)  the level of CO2 in the blood would increase. 
B)  the level of CO2 in the blood would decrease. 
C)  the level of CO2 in the blood would remain the same. 
D)  the pH of the blood would remain the same. 
E)  the pH of the blood would decrease.

Question 9

The swim bladders of fishes function primarily in ventilation.
____________________

Accepted Answer

A) True 
 B)False

Question 10

Asian pearl divers hyperventilate in order to reduce the __________ concentration in the blood.

Accepted Answer

A)  oxygen 
B)  hydrogen ion 
C)  carbon dioxide 
D)  chloride ion 
E)  hemoglobin 
A)  oxygen 
B)  hydrogen ion 
C)  carbon dioxide 
D)  chloride ion 
E)  hemoglobin

Question 11

The volume of air remaining in the lungs after maximal expiration is the:

Accepted Answer

A)  vital capacity. 
B)  tidal volume. 
C)  tidal capacity. 
D)  residual capacity. 
E)  residual volume. 
A)  vital capacity. 
B)  tidal volume. 
C)  tidal capacity. 
D)  residual capacity. 
E)  residual volume.

Question 12

Most carbon dioxide is transported in the blood in the form of bicarbonate.
____________________

Accepted Answer

A) True 
 B)False

Question 13

The smallest branches of the respiratory tree are the:

Accepted Answer

A)  pharynx. 
B)  tracheae. 
C)  bronchial tubes. 
D)  bronchioles. 
E)  bronchi. 
A)  pharynx. 
B)  tracheae. 
C)  bronchial tubes. 
D)  bronchioles. 
E)  bronchi.

Question 14

Which of the following best illustrates the Bohr effect?

Accepted Answer

A)  The amount of a gas that diffuses across a membrane depends on the differences in the gas' partial pressure. 
B)  The ability of hemoglobin to bind oxygen depends on the partial pressure of oxygen. 
C)  In a mixture of gases, the total pressure of the mixture is the sum of the pressures of the individual gases. 
D)  pH causes a displacement of the oxygen-hemoglobin dissociation curve. 
E)  As the concentration of chloride ions increases, the ability of hemoglobin to bind carbon dioxide decreases. 
A)  The amount of a gas that diffuses across a membrane depends on the differences in the gas' partial pressure. 
B)  The ability of hemoglobin to bind oxygen depends on the partial pressure of oxygen. 
C)  In a mixture of gases, the total pressure of the mixture is the sum of the pressures of the individual gases. 
D)  pH causes a displacement of the oxygen-hemoglobin dissociation curve. 
E)  As the concentration of chloride ions increases, the ability of hemoglobin to bind carbon dioxide decreases.

Question 15

Figure 46-1
Use the figure to answer the corresponding question(s).  
-Refer to Figure 46-1.Which two figures in the accompanying illustration represent inhalation steps of the respiratory cycle?

Accepted Answer

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

Question 16

Gases move freely across the walls of the bronchioles into the capillaries that surround them.
____________________

Accepted Answer

A) True 
 B)False

Question 17

The ventilation of insect tracheal tubes is dependent upon the presence of:

Accepted Answer

A)  pores. 
B)  alveoli. 
C)  gills. 
D)  spiracles. 
E)  opercula. 
A)  pores. 
B)  alveoli. 
C)  gills. 
D)  spiracles. 
E)  opercula.

Question 18

MATCHING
Match the part of the human respiratory system with its decription.
a.alveoli
e.nasal cavity
b.bronchiole
f.pharynx
c.bronchus
g.trachea
d.larynx
-Inhaled dirt and bacteria are pushed toward the throat.

Accepted Answer

The answer of MATCHING
Match the part of the human respiratory...

Question 19

MATCHING
Match the part of the human respiratory system with its decription.
a.alveoli
e.nasal cavity
b.bronchiole
f.pharynx
c.bronchus
g.trachea
d.larynx
-Inhaled air is brought to body temperature within this structure.

Accepted Answer

The answer of MATCHING
Match the part of the human respiratory...

Question 20

All of the following are advantages of gas exchange in air, as compared to gas exchange in water, except:

Accepted Answer

A)  air is less dense than water. 
B)  air contains a higher concentration of oxygen. 
C)  less energy is needed to move air over a gas exchange surface. 
D)  oxygen diffuses more slowly through air than water. 
E)  air is less viscous than water. 
A)  air is less dense than water. 
B)  air contains a higher concentration of oxygen. 
C)  less energy is needed to move air over a gas exchange surface. 
D)  oxygen diffuses more slowly through air than water. 
E)  air is less viscous than water.

Exam 46: Gas Exchange

During exhalation, air moves from the bronchi directly into the alveoli. ____________________

During swallowing, __________ closes off the __________ so food cannot enter the lower airway.

A respiratory system is needed if an organism is too __________ to rely on the diffusion of gases through the body's tissues.

Both aquatic and terrestrial organisms must have __________ across which gas exchange can take place.

In humans, the oxygen concentration of the blood is the most important chemical stimulus for regulating the rate of respiration. ____________________

The parabronchi of birds are open at both ends. ____________________

MATCHING Match the part of the human respiratory system with its decription. a.alveoli e.nasal cavity b.bronchiole f.pharynx c.bronchus g.trachea d.larynx -After leaving the larynx, inhaled air passes next into this structure.

Figure 46-4 Use the figure to answer the corresponding question(s). Oxygen-hemoglobin dissociation curves at three different pH levels -If a carbonic anhydrase inhibitor was added to blood:

The swim bladders of fishes function primarily in ventilation. ____________________

Asian pearl divers hyperventilate in order to reduce the __________ concentration in the blood.

The volume of air remaining in the lungs after maximal expiration is the:

Most carbon dioxide is transported in the blood in the form of bicarbonate. ____________________

The smallest branches of the respiratory tree are the:

Which of the following best illustrates the Bohr effect?

Figure 46-1 Use the figure to answer the corresponding question(s). -Refer to Figure 46-1.Which two figures in the accompanying illustration represent inhalation steps of the respiratory cycle?

Gases move freely across the walls of the bronchioles into the capillaries that surround them. ____________________

The ventilation of insect tracheal tubes is dependent upon the presence of:

MATCHING Match the part of the human respiratory system with its decription. a.alveoli e.nasal cavity b.bronchiole f.pharynx c.bronchus g.trachea d.larynx -Inhaled dirt and bacteria are pushed toward the throat.

MATCHING Match the part of the human respiratory system with its decription. a.alveoli e.nasal cavity b.bronchiole f.pharynx c.bronchus g.trachea d.larynx -Inhaled air is brought to body temperature within this structure.

All of the following are advantages of gas exchange in air, as compared to gas exchange in water, except:

A View of Life

Atoms and Molecules: the Chemical Basis of Life

The Chemistry of Life: Organic Compounds

Organization of the Cell

Biological Membranes

Cell Communication

Energy and Metabolism

How Cells Make Atp: Energy-Releasing Pathways

Photosynthesis: Capturing Light Energy

Chromosomes, Mitosis, and Meiosis

The Basic Principles of Heredity

Dna: the Carrier of Genetic Information

Gene Expression

Gene Regulation

Dna Technology and Genomics

Human Genetics and the Human Genome

Developmental Genetics

Introduction to Darwinian Evolution

Evolutionary Change in Populations

Speciation and Macroevolution

The Origin and Evolutionary History of Life

The Evolution of Primates

Understanding Diversity: Systematics

Viruses and Subviral Agents

Bacteria and Archaea

Protists

Seedless Plants

Seed Plants

The Fungi

An Introduction to Animal Diversity

Sponges, Cnidarians, Ctenophores, and Protostomes

The Deuterostomes

Plant Structure, Growth, and Development

Leaf Structure and Function

Stem Structure and Transport

Roots and Mineral Nutrition

Reproduction in Flowering Plants

Plant Developmental Responses to External and Internal Signals

Animal Structure and Function: an Introduction

Protection, Support, and Movement

Neural Signaling

Neural Regulation

Sensory Systems

Internal Transport

The Immune System: Internal Defense

Processing Food and Nutrition

Osmoregulation and Disposal of Metabolic Wastes

Endocrine Regulation

Reproduction

Animal Development

Animal Behavior

Introduction to Ecology: Population Ecology

Community Ecology

Ecosystems and the Biosphere

Ecology and the Geography of Life

Biological Diversity and Conservation Biology

Filters

During swallowing, closes off the so food cannot enter the lower airway.