Question 1

Hypoxia results in all of the following EXCEPT

Accepted Answer

A) hyperventilation. 
B) respiratory muscles working harder. 
C) heart muscles working harder. 
D) breathing difficulty. 
E) excessive oxygenation of the blood. 
A) hyperventilation. 
B) respiratory muscles working harder. 
C) heart muscles working harder. 
D) breathing difficulty. 
E) excessive oxygenation of the blood. E

Question 2

Which of the following is false regarding sudden infant death syndrome (SIDS)?

Accepted Answer

A) It may have a heritable basis. 
B) It is a type of apnea. 
C) Infants who sleep on their stomachs are more vulnerable to it. 
D) Infants of women who smoke or who are exposed to smoke during pregnancy are more susceptible to it. 
E) It is linked to gene mutations that cause irregular heart beat. 
A) It may have a heritable basis. 
B) It is a type of apnea. 
C) Infants who sleep on their stomachs are more vulnerable to it. 
D) Infants of women who smoke or who are exposed to smoke during pregnancy are more susceptible to it. 
E) It is linked to gene mutations that cause irregular heart beat. C

Question 3

The partial pressure of atmospheric oxygen gas at sea level is about

Accepted Answer

A) 0.3 mm Hg. 
B) 160 mm Hg. 
C) 300 mm Hg. 
D) 592 mm Hg. 
E) 745 mm Hg. 
A) 0.3 mm Hg. 
B) 160 mm Hg. 
C) 300 mm Hg. 
D) 592 mm Hg. 
E) 745 mm Hg. B

Question 4

Air is continuously forced through tubes that thread through vascularized tissue in a pair of inelastic lungs in

Accepted Answer

A) some fish. 
B) amphibians. 
C) birds. 
D) reptiles. 
E) some small mammals. 
A) some fish. 
B) amphibians. 
C) birds. 
D) reptiles. 
E) some small mammals.

Question 5

High altitude acclimatization results in all of the following EXCEPT

Accepted Answer

A) increased production of erythropoietin. 
B) increased blood-cell production. 
C) decreased workload for the heart. 
D) an increase in blood viscosity. 
E) increased O2 concentration in the blood. 
A) increased production of erythropoietin. 
B) increased blood-cell production. 
C) decreased workload for the heart. 
D) an increase in blood viscosity. 
E) increased O2 concentration in the blood.

Question 6

Which of the following illustrate(s) ventilation?

Accepted Answer

A) bailing water over the gills 
B) movement of water past cells by using flagella 
C) moving air in and out of lungs 
D) tracheal exchanges 
E) all of these 
A) bailing water over the gills 
B) movement of water past cells by using flagella 
C) moving air in and out of lungs 
D) tracheal exchanges 
E) all of these

Question 7

Respiratory exchange requires a membrane that is or does all of the following EXCEPT

Accepted Answer

A) is thin. 
B) is moist. 
C) is permeable to gases. 
D) separates partial pressure gradients of O2 and of CO2. 
E) all of these. 
A) is thin. 
B) is moist. 
C) is permeable to gases. 
D) separates partial pressure gradients of O2 and of CO2. 
E) all of these.

Question 8

The __________ prevents food and fluids from entering the __________.

Accepted Answer

A) epiglottis; larynx 
B) pharynx; larynx 
C) epiglottis; esophagus 
D) pharynx; trachea 
E) larynx; pharynx 
A) epiglottis; larynx 
B) pharynx; larynx 
C) epiglottis; esophagus 
D) pharynx; trachea 
E) larynx; pharynx

Question 9

__________ is always __________, while __________ may be __________.

Accepted Answer

A) Exhalation; passive; inhalation; active 
B) Inhalation; active; exhalation; passive 
C) Inhalation; passive; exhalation; active 
D) Exhalation; active; inhalation; passive 
E) Exhalation; active; inhalation; active 
A) Exhalation; passive; inhalation; active 
B) Inhalation; active; exhalation; passive 
C) Inhalation; passive; exhalation; active 
D) Exhalation; active; inhalation; passive 
E) Exhalation; active; inhalation; active

Question 10

About __________ percent of the CO2 in the blood is transported __________.

Accepted Answer

A) 60; dissolved in plasma 
B) 30; as bicarbonate 
C) 60; as bicarbonate 
D) 60; as carbaminohemoglobin 
E) 30; dissolved in plasma 
A) 60; dissolved in plasma 
B) 30; as bicarbonate 
C) 60; as bicarbonate 
D) 60; as carbaminohemoglobin 
E) 30; dissolved in plasma

Question 11

In the respiration of terrestrial animals, "ventilation" refers to

Accepted Answer

A) the bulk movement of air in and out of the organism. 
B) the diffusion of gases across a membrane. 
C) the diffusion of gases in and out of blood cells. 
D) the transport of gases to and from body cells. 
E) all of these. 
A) the bulk movement of air in and out of the organism. 
B) the diffusion of gases across a membrane. 
C) the diffusion of gases in and out of blood cells. 
D) the transport of gases to and from body cells. 
E) all of these.

Question 12

Females that start smoking as teenagers are __________ percent more likely to develop breast cancer than those who do not take up the habit.

Accepted Answer

A) 40 
B) 50 
C) 60 
D) 70 
E) 80 
A) 40 
B) 50 
C) 60 
D) 70 
E) 80

Question 13

The direction of water flow is indicated by

Accepted Answer

A) A. 
B) B. 
C) C. 
D) D. 
E) E. 
A) A. 
B) B. 
C) C. 
D) D. 
E) E.

Question 14

Atmospheric pressure at sea level is

Accepted Answer

A) 1,000 mm Hg. 
B) 760 mm Hg. 
C) 540 mm Hg. 
D) 400 mm Hg. 
E) 320 mm Hg. 
A) 1,000 mm Hg. 
B) 760 mm Hg. 
C) 540 mm Hg. 
D) 400 mm Hg. 
E) 320 mm Hg.

Question 15

Which of the following is a cause of interrupted breathing?

Accepted Answer

A) a tumor in the brain near the medulla oblongata 
B) lung cancer 
C) high altitude sickness 
D) low red blood cell count 
E) none of these 
A) a tumor in the brain near the medulla oblongata 
B) lung cancer 
C) high altitude sickness 
D) low red blood cell count 
E) none of these

Question 16

The difference between the vital capacities of young, healthy adult males and that of young, healthy adult females is about __________ liters.

Accepted Answer

A) 5.7 
B) 4.2 
C) 3.7 
D) 2.5 
E) 1.5 
A) 5.7 
B) 4.2 
C) 3.7 
D) 2.5 
E) 1.5

Question 17

Which of the following is a common cause of interrupted breathing?

Accepted Answer

A) sleep apnea 
B) lung cancer 
C) high altitude sickness 
D) low red blood cell count 
E) none of these 
A) sleep apnea 
B) lung cancer 
C) high altitude sickness 
D) low red blood cell count 
E) none of these

Question 18

Which of the following is (are) associated with a teenager's first attempt at smoking?

Accepted Answer

A) headaches 
B) coughing 
C) dizziness 
D) nausea 
E) all of these 
A) headaches 
B) coughing 
C) dizziness 
D) nausea 
E) all of these

Question 19

Nicotine is a highly addictive stimulant that causes all of the following effects EXCEPT

Accepted Answer

A) blood vessel constriction. 
B) increase in blood pressure. 
C) decrease of low density lipids (LDLs). 
D) clogging of arteries. 
E) strokes. 
A) blood vessel constriction. 
B) increase in blood pressure. 
C) decrease of low density lipids (LDLs). 
D) clogging of arteries. 
E) strokes.

Question 20

Countercurrent flow in the respiratory systems of fish is a mechanism that accounts for

Accepted Answer

A) oxygen uptake by blood capillaries in the gills. 
B) ventilation across fish gills. 
C) the transport of blood from the gills to the fish's heart. 
D) the transport of blood from the heart to the fish's main body mass. 
E) the flow of blood in gills as opposed to the flow of blood in the main body mass of fish. 
A) oxygen uptake by blood capillaries in the gills. 
B) ventilation across fish gills. 
C) the transport of blood from the gills to the fish's heart. 
D) the transport of blood from the heart to the fish's main body mass. 
E) the flow of blood in gills as opposed to the flow of blood in the main body mass of fish.

Exam 39: Respiration

Hypoxia results in all of the following EXCEPT

Which of the following is false regarding sudden infant death syndrome (SIDS)?

The partial pressure of atmospheric oxygen gas at sea level is about

Air is continuously forced through tubes that thread through vascularized tissue in a pair of inelastic lungs in

High altitude acclimatization results in all of the following EXCEPT

Which of the following illustrate(s) ventilation?

Respiratory exchange requires a membrane that is or does all of the following EXCEPT

The __________ prevents food and fluids from entering the __________.

__________ is always __________, while __________ may be __________.

About __________ percent of the CO2 in the blood is transported __________.

In the respiration of terrestrial animals, "ventilation" refers to

Females that start smoking as teenagers are __________ percent more likely to develop breast cancer than those who do not take up the habit.

The direction of water flow is indicated by

Atmospheric pressure at sea level is

Which of the following is a cause of interrupted breathing?

The difference between the vital capacities of young, healthy adult males and that of young, healthy adult females is about __________ liters.

Which of the following is a common cause of interrupted breathing?

Which of the following is (are) associated with a teenager's first attempt at smoking?

Nicotine is a highly addictive stimulant that causes all of the following effects EXCEPT

Countercurrent flow in the respiratory systems of fish is a mechanism that accounts for

Invitation to Biology

Lifes Chemical Basis

Molecules of Life

Cell Structure and Function

A Closer Look at Cell Membranes

Ground Rules of Metabolism

Where It Startsphotosynthesis

Energy-Releasing Pathways

How Cells Reproduce

Meiosis and Sexual Reproduction

Observing Patterns in Inherited Traits

Chromosomes and Human Inheritance

Dna Structure and Function

From Dna to Protein

Controls Over Genes

Recombinant Dna and Genetic Engineering

The Macroevolutionary Puzzle

Emergence of Evolutionary Thought

Organizing Information About Species

The Origin and Evolution of Life

Viruses and Prokaryotes

Protists the Simplest Eukaryotes

Plants

Fungi

Animals: the Invertebrates

Animal Evolution the Chordates

Human Evolution: a Case Study

Plant Tissues

Plant Nutrition and Transport

Plant Reproduction

Plant Growth and Development

Animal Tissues and Organ Systems

Neural Control

Sensory Perception

Endocrine Control

Protection, Support, and Movement

Circulation

Immunity

Digestion and Human Nutrition

Maintaining the Internal Environment

Animal Reproductive Systems

Animal Development

Animal Behavior

Population Ecology

Community Structure and Biodiversity

Ecosystems

The Biosphere

Human Impacts on the Biosphere

Filters

The prevents food and fluids from entering the .

is always , while may be .

About percent of the CO₂ in the blood is transported .