Question 1

Which of the following is an example of a respiratory surface?

Accepted Answer

A)  fish fins 
B)  human nose 
C)  reptilian skin 
D)  human lungs 
A)  fish fins 
B)  human nose 
C)  reptilian skin 
D)  human lungs

Question 2

Which animals use positive pressure breathing to ventilate their lungs?

Accepted Answer

A)  reptiles 
B)  birds 
C)  dogs 
D)  frogs 
A)  reptiles 
B)  birds 
C)  dogs 
D)  frogs

Question 3

What happens to the chest cavity and air pressure in the lungs during exhalation?

Accepted Answer

A)  The chest cavity increases, and air pressure decreases. 
B)  The chest cavity increases, and air pressure also increases. 
C)  The chest cavity decreases, and air pressure increases. 
D)  The chest cavity decreases, and air pressure also decreases. 
A)  The chest cavity increases, and air pressure decreases. 
B)  The chest cavity increases, and air pressure also increases. 
C)  The chest cavity decreases, and air pressure increases. 
D)  The chest cavity decreases, and air pressure also decreases.

Question 4

Which chemical has the least influence on the regulation of breathing rate?

Accepted Answer

A)  chemical O2 
B)  chemical N2 
C)  chemical H 
D)  chemical CO2 
A)  chemical O2 
B)  chemical N2 
C)  chemical H 
D)  chemical CO2

Question 5

If N2 gas comprises 79% of atmospheric air at sea level, what is the partial pressure of N2?

Accepted Answer

A)  about 300 mm Hg 
B)  about 500 mm Hg 
C)  about 600 mm Hg 
D)  about 700 mm Hg 
A)  about 300 mm Hg 
B)  about 500 mm Hg 
C)  about 600 mm Hg 
D)  about 700 mm Hg

Question 6

Which animals use air sacs to ventilate their lungs?

Accepted Answer

A)  reptiles 
B)  horses 
C)  birds 
D)  frogs 
A)  reptiles 
B)  horses 
C)  birds 
D)  frogs

Question 7

Which of the following encourages the movement of water over gills?

Accepted Answer

A)  beating cilia 
B)  a fish swimming with its mouth closed 
C)  the diaphragm contracting 
D)  a muscular tail contracting 
A)  beating cilia 
B)  a fish swimming with its mouth closed 
C)  the diaphragm contracting 
D)  a muscular tail contracting

Question 8

Match each term with its description.
-ventilation

Accepted Answer

A) flow of blood (or body fluids) on the internal side of the respiratory surface 
B) gas exchange between the blood and body tissue cells 
C) general term used to describe an animal's exchange of gases with the respiratory medium 
D) specifically describes the release of air from the lungs to the atmosphere 
E) flow of the respiratory medium over the external side of the respiratory surface
F)occurs due to the expansion of the lungs and thoracic cavity
G)exchange of gases between the respiratory medium and the blood (or internal body fluids) 
A) flow of blood (or body fluids) on the internal side of the respiratory surface 
B) gas exchange between the blood and body tissue cells 
C) general term used to describe an animal's exchange of gases with the respiratory medium 
D) specifically describes the release of air from the lungs to the atmosphere 
E) flow of the respiratory medium over the external side of the respiratory surface
F)occurs due to the expansion of the lungs and thoracic cavity
G)exchange of gases between the respiratory medium and the blood (or internal body fluids)

Question 9

Which of the following is an example of local control over breathing?

Accepted Answer

A)  the interneuron groups of the pons refining the contractions involved with inhalation and exhalation 
B)  the aortic bodies signalling an increase in breathing rate when blood pH is acidic 
C)  the carotid bodies signalling an increase in breathing rate when O2 levels are low 
D)  automated lung ventilation and lung perfusion adjustments maximizing O2 and CO2 exchange 
A)  the interneuron groups of the pons refining the contractions involved with inhalation and exhalation 
B)  the aortic bodies signalling an increase in breathing rate when blood pH is acidic 
C)  the carotid bodies signalling an increase in breathing rate when O2 levels are low 
D)  automated lung ventilation and lung perfusion adjustments maximizing O2 and CO2 exchange

Question 10

Which of the following animals have the highest O2 consumption per gram ever recorded for animals?

Accepted Answer

A)  aquatic animals 
B)  insects at rest 
C)  insects at flight 
D)  birds at flight 
A)  aquatic animals 
B)  insects at rest 
C)  insects at flight 
D)  birds at flight

Question 11

Alveoli are surrounded by pulmonary capillaries.

Accepted Answer

A) True 
 B)False

Question 12

Why is proper ventilation important for a respiring animal?

Accepted Answer

A)  It directly increases gas exchange between the blood and cells. 
B)  It maintains blood circulation within the body of an animal. 
C)  It maintains proper O2 and CO2 levels on the internal side of the respiratory surface so that diffusion across it can be maintained. 
D)  It maintains proper O2 and CO2 levels on the external side of the respiratory surface so that diffusion across it can be maintained. 
A)  It directly increases gas exchange between the blood and cells. 
B)  It maintains blood circulation within the body of an animal. 
C)  It maintains proper O2 and CO2 levels on the internal side of the respiratory surface so that diffusion across it can be maintained. 
D)  It maintains proper O2 and CO2 levels on the external side of the respiratory surface so that diffusion across it can be maintained.

Question 13

Which of the following respiratory surfaces lack physical protection from the external environment?

Accepted Answer

A)  internal gills 
B)  lungs 
C)  tracheal system tubes 
D)  external gills 
A)  internal gills 
B)  lungs 
C)  tracheal system tubes 
D)  external gills

Question 14

Which of the following occurs during human inhalation?

Accepted Answer

A)  The diaphragm relaxes and the external intercostal muscles relax. 
B)  The diaphragm relaxes and the external intercostal muscles contract. 
C)  The diaphragm contracts and the external intercostal muscles relax. 
D)  The diaphragm contracts and the external intercostal muscles contract. 
A)  The diaphragm relaxes and the external intercostal muscles relax. 
B)  The diaphragm relaxes and the external intercostal muscles contract. 
C)  The diaphragm contracts and the external intercostal muscles relax. 
D)  The diaphragm contracts and the external intercostal muscles contract.

Question 15

Which term refers to the initial branches of the trachea that lead into each lung?

Accepted Answer

A)  bronchioles 
B)  alveoli 
C)  pleura 
D)  bronchi 
A)  bronchioles 
B)  alveoli 
C)  pleura 
D)  bronchi

Question 16

Which event occurs in body tissue blood?

Accepted Answer

A)  In the plasma, HCO3- and H+ convert into CO2 and H2O. 
B)  Erythrocyte HCO3- enters the plasma. 
C)  Free H+ releases from hemoglobin. 
D)  CO2 binds to hemoglobin. 
A)  In the plasma, HCO3- and H+ convert into CO2 and H2O. 
B)  Erythrocyte HCO3- enters the plasma. 
C)  Free H+ releases from hemoglobin. 
D)  CO2 binds to hemoglobin.

Question 17

Match each term with its description.
-breathing

Accepted Answer

A) flow of blood (or body fluids) on the internal side of the respiratory surface 
B) gas exchange between the blood and body tissue cells 
C) general term used to describe an animal's exchange of gases with the respiratory medium 
D) specifically describes the release of air from the lungs to the atmosphere 
E) flow of the respiratory medium over the external side of the respiratory surface
F)occurs due to the expansion of the lungs and thoracic cavity
G)exchange of gases between the respiratory medium and the blood (or internal body fluids) 
A) flow of blood (or body fluids) on the internal side of the respiratory surface 
B) gas exchange between the blood and body tissue cells 
C) general term used to describe an animal's exchange of gases with the respiratory medium 
D) specifically describes the release of air from the lungs to the atmosphere 
E) flow of the respiratory medium over the external side of the respiratory surface
F)occurs due to the expansion of the lungs and thoracic cavity
G)exchange of gases between the respiratory medium and the blood (or internal body fluids)

Question 18

A larynx is found at the beginning of each insect trachea.

Accepted Answer

A) True 
 B)False

Question 19

What would you predict would happen in an area of the body where blood is relatively acidic (low pH)?

Accepted Answer

A)  CO2 would bind more readily to hemoglobin. 
B)  O2 would release from hemoglobin. 
C)  CO2 would release from hemoglobin. 
D)  O2 would bind more readily to hemoglobin. 
A)  CO2 would bind more readily to hemoglobin. 
B)  O2 would release from hemoglobin. 
C)  CO2 would release from hemoglobin. 
D)  O2 would bind more readily to hemoglobin.

Question 20

Which of the following is involved in both cellular respiration and physiological respiration in humans?

Accepted Answer

A)  the respiratory surface 
B)  the circulatory system 
C)  mitochondria 
D)  the respiratory medium 
A)  the respiratory surface 
B)  the circulatory system 
C)  mitochondria 
D)  the respiratory medium

Exam 40: Gas Exchange: the Respiratory System

Which of the following is an example of a respiratory surface?

Which animals use positive pressure breathing to ventilate their lungs?

What happens to the chest cavity and air pressure in the lungs during exhalation?

Which chemical has the least influence on the regulation of breathing rate?

If N2 gas comprises 79% of atmospheric air at sea level, what is the partial pressure of N2?

Which animals use air sacs to ventilate their lungs?

Which of the following encourages the movement of water over gills?

Match each term with its description. -ventilation

Which of the following is an example of local control over breathing?

Which of the following animals have the highest O2 consumption per gram ever recorded for animals?

Alveoli are surrounded by pulmonary capillaries.

Why is proper ventilation important for a respiring animal?

Which of the following respiratory surfaces lack physical protection from the external environment?

Which of the following occurs during human inhalation?

Which term refers to the initial branches of the trachea that lead into each lung?

Which event occurs in body tissue blood?

Match each term with its description. -breathing

A larynx is found at the beginning of each insect trachea.

What would you predict would happen in an area of the body where blood is relatively acidic (low pH)?

Which of the following is involved in both cellular respiration and physiological respiration in humans?

Light and Life

The Cell: an Overview

Energy and Enzymes

Cell Membranes and Signaling

Cellular Respiration

Photosynthesis

Cell Cycles

Genetic Recombination

The Chromosomal Basis of Mendelian Inheritance

Genetic Linkage, Sex-Linkage, and Other Non-Mendelian Inheritance Mechanisms

DNA Structure, Replication, and Repair

Gene Structure Expression, and Mutation

Regulation of Gene Expression

Dna Technologies

Genomes

Evolution: the Development of the Theory

Microevolution: Changes Within Populations

Speciation and Macroevolution

Systematics and Phylogenetics: Revealing the Tree of Life

Humans and Evolution

Defining Life and Its Origins

Viruses, Viroids, and Prions: Infectious Biological Particles

Bacteria and Archaea

Protists

Fungi

Plants

Animals

Conservation of Biodiversity

Population Ecology

Species Interactions and Community Ecology

Ecosystems

Animal Behaviour

Organization of the Plant Body

Transport in Plants

Reproduction and Development in Flowering Plants

Plant Nutrition

Plant Signals and Responses to the Environment

Introduction to Animal Organization and Physiology

Animal Nutrition

Internal Transport: the Circulatory System

Regulation of the Internal Environment: Water, Solutes, and Temperature

Control of Animal Processes: Endocrine Control

Animal Reproduction

Control of Animal Processes: Neural Control

Muscles, Skeletons, and Body Movements

Filters

If N₂ gas comprises 79% of atmospheric air at sea level, what is the partial pressure of N₂?

Which of the following animals have the highest O₂ consumption per gram ever recorded for animals?