Question 1

When drinking water at a party you sneeze and water comes out of your nose. Why did this happen?

Accepted Answer

A)  The epiglottis did not close. 
B)  The glottis did not close. 
C)  The pharynx and nasal cavity were connected. 
D)  The tongue blocked the pharynx. 
E)  The water was carbonated. 
A)  The epiglottis did not close. 
B)  The glottis did not close. 
C)  The pharynx and nasal cavity were connected. 
D)  The tongue blocked the pharynx. 
E)  The water was carbonated.

Question 2

Which of the following occurs during forced expiration?

Accepted Answer

A)  The alveoli inflate. 
B)  The ribs move upward. 
C)  The internal intercostal muscles contract. 
D)  The floor of the thoracic cavity moves downward. 
E)  The pressure increases in the thoracic cavity. 
A)  The alveoli inflate. 
B)  The ribs move upward. 
C)  The internal intercostal muscles contract. 
D)  The floor of the thoracic cavity moves downward. 
E)  The pressure increases in the thoracic cavity.

Question 3

The efficient exchange of gases in gills is an example of countercurrent exchange .

Accepted Answer

A) True 
 B)False

Question 4

To facilitate respiration, birds have extensions of their lungs called ____, which reach into all parts of their bodies.

Accepted Answer

A)  tracheal tubes 
B)  spiracles 
C)  air bladders 
D)  parabronchi 
E)  air sacs 
A)  tracheal tubes 
B)  spiracles 
C)  air bladders 
D)  parabronchi 
E)  air sacs

Question 5

In pulmonary emphysema, alveoli lose their elasticity.

Accepted Answer

A) True 
 B)False

Question 6

The ability of oxygen to combine with and detach from hemoglobin is influenced by which of the following factors?

Accepted Answer

A)  percent oxygen saturation 
B)  humidity 
C)  oxygen concentration 
D)  tidal volume 
E)  partial pressure 
A)  percent oxygen saturation 
B)  humidity 
C)  oxygen concentration 
D)  tidal volume 
E)  partial pressure

Question 7

Why do land dwelling insects drown when they are in water?

Accepted Answer

A)  Their lungs fill with water. 
B)  Their lungs are functioning too fast to sustain life. 
C)  They cannot respire across their body surface. 
D)  They are unable to ventilate because their spiracles are underwater. 
E)  Their gills are too moist. 
A)  Their lungs fill with water. 
B)  Their lungs are functioning too fast to sustain life. 
C)  They cannot respire across their body surface. 
D)  They are unable to ventilate because their spiracles are underwater. 
E)  Their gills are too moist.

Question 8

The swim bladders of fishes function primarily in ventilation .

Accepted Answer

A) True 
 B)False

Question 9

When chemoreceptors detect a slight decrease in pH, this means that ____ concentrations have increased, and the breathing rate must ____.

Accepted Answer

A)  carbon dioxide; increase 
B)  carbon dioxide; decrease 
C)  oxygen; increase 
D)  oxygen; decrease 
E)  chloride; decrease 
A)  carbon dioxide; increase 
B)  carbon dioxide; decrease 
C)  oxygen; increase 
D)  oxygen; decrease 
E)  chloride; decrease

Question 10

Mitochondria use respired oxygen as an electron acceptor in the process known as:

Accepted Answer

A)  pulmonary ventilation. 
B)  cellular respiration. 
C)  external respiration. 
D)  internal respiration. 
E)  anaerobic respiration. 
A)  pulmonary ventilation. 
B)  cellular respiration. 
C)  external respiration. 
D)  internal respiration. 
E)  anaerobic respiration.

Question 11

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

Accepted Answer

A) True 
 B)False

Question 12

The film of fluid in the pleural cavity functions to:

Accepted Answer

A)  nourish the lungs. 
B)  rehydrate the lungs. 
C)  provide lubrication between the lungs and thoracic wall. 
D)  trap bacteria that may enter the lungs. 
E)  inflate the lungs. 
A)  nourish the lungs. 
B)  rehydrate the lungs. 
C)  provide lubrication between the lungs and thoracic wall. 
D)  trap bacteria that may enter the lungs. 
E)  inflate the lungs.

Question 13

Which of the following sequences correctly describes the movement of air in a bird's respiratory system?

Accepted Answer

A)  lungs; anterior air sacs; posterior air sacs 
B)  anterior air sacs; posterior air sac; lungs 
C)  posterior air sacs; lungs; anterior air sacs 
D)  lungs; posterior air sacs; anterior air sacs 
E)  anterior air sacs; lungs; posterior air sacs 
A)  lungs; anterior air sacs; posterior air sacs 
B)  anterior air sacs; posterior air sac; lungs 
C)  posterior air sacs; lungs; anterior air sacs 
D)  lungs; posterior air sacs; anterior air sacs 
E)  anterior air sacs; lungs; posterior air sacs

Question 14

During inspiration, the diaphragm ____ and ____ the volume of the thoracic cavity, causing air to flow ____.

Accepted Answer

A)  relaxes; increases; inward 
B)  contracts; increases; inward 
C)  relaxes; decreases; outward 
D)  relaxes; decreases; inward 
E)  contracts; decreases; inward 
A)  relaxes; increases; inward 
B)  contracts; increases; inward 
C)  relaxes; decreases; outward 
D)  relaxes; decreases; inward 
E)  contracts; decreases; inward

Question 15

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

Accepted Answer

A) True 
 B)False

Question 16

Dalton's Law states that:

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 17

The pleural cavity is located:

Accepted Answer

A)  between the pleural membranes. 
B)  inside the innermost pleural membrane. 
C)  outside the outermost pleural membrane. 
D)  between the right lung and the left lung. 
E)  within the bronchioles. 
A)  between the pleural membranes. 
B)  inside the innermost pleural membrane. 
C)  outside the outermost pleural membrane. 
D)  between the right lung and the left lung. 
E)  within the bronchioles.

Question 18

Which of the following occurs in pulmonary emphysema?

Accepted Answer

A)  The alveoli lose their elasticity. 
B)  The surface area of the lung is greatly decreased. 
C)  Walls between adjacent alveoli become reinforced. 
D)  The heart becomes enlarged from pressure. 
E)  Fresh air accumulates in the lungs because it cannot be properly inhaled. 
A)  The alveoli lose their elasticity. 
B)  The surface area of the lung is greatly decreased. 
C)  Walls between adjacent alveoli become reinforced. 
D)  The heart becomes enlarged from pressure. 
E)  Fresh air accumulates in the lungs because it cannot be properly inhaled.

Question 19

Match between columns
                        Premises: patients may also have chronic bronchitis and/or asthma
bronchial tubes narrow, increasing likelihood that inhaled particles will stick to mucous lining
most common in cigarette smokers
rapid defense response to breathing dirty air
alveoli lose elasticity and walls between alveoli are destroyed
characterized by obstructed airflow

Accepted Answer

The Answer of bronchial constriction and pulmonary emphysema and chronic is...

Question 20

The maximum amount of air a person can exhale is called:

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

Exam 46: Gas Exchange

When drinking water at a party you sneeze and water comes out of your nose. Why did this happen?

Which of the following occurs during forced expiration?

The efficient exchange of gases in gills is an example of countercurrent exchange .

To facilitate respiration, birds have extensions of their lungs called ____, which reach into all parts of their bodies.

In pulmonary emphysema, alveoli lose their elasticity.

The ability of oxygen to combine with and detach from hemoglobin is influenced by which of the following factors?

Why do land dwelling insects drown when they are in water?

The swim bladders of fishes function primarily in ventilation .

When chemoreceptors detect a slight decrease in pH, this means that ____ concentrations have increased, and the breathing rate must ____.

Mitochondria use respired oxygen as an electron acceptor in the process known as:

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

The film of fluid in the pleural cavity functions to:

Which of the following sequences correctly describes the movement of air in a bird's respiratory system?

During inspiration, the diaphragm ____ and ____ the volume of the thoracic cavity, causing air to flow ____.

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

Dalton's Law states that:

The pleural cavity is located:

Which of the following occurs in pulmonary emphysema?

The maximum amount of air a person can exhale is called:

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

When chemoreceptors detect a slight decrease in pH, this means that concentrations have increased, and the breathing rate must .

During inspiration, the diaphragm and the volume of the thoracic cavity, causing air to flow .