Question 1

Which of the following passageways delivers air directly into each lung?

Accepted Answer

A)  Larynx 
B)  Bronchus 
C)  Bronchiole 
D)  Pharynx 
E)  Trachea 
A)  Larynx 
B)  Bronchus 
C)  Bronchiole 
D)  Pharynx 
E)  Trachea B

Question 2

What stimulates the respiratory center to increase the breathing rate?

Accepted Answer

A rise in carbon dioxide levels

Question 3

What are spiracles?

Accepted Answer

A)  Openings into the alveoli of the lungs 
B)  Openings between the gills of a frog tadpole 
C)  Openings to the bronchi 
D)  Openings to the parabronchi 
E)  Openings into the tracheae of insects 
A)  Openings into the alveoli of the lungs 
B)  Openings between the gills of a frog tadpole 
C)  Openings to the bronchi 
D)  Openings to the parabronchi 
E)  Openings into the tracheae of insects E

Question 4

Which of the following is NOT part of the conducting portion of the human respiratory system?

Accepted Answer

A)  Bronchi 
B)  Pharynx 
C)  Larynx 
D)  Alveoli 
E)  Trachea 
A)  Bronchi 
B)  Pharynx 
C)  Larynx 
D)  Alveoli 
E)  Trachea

Question 5

What structures make up the large surface area for gas exchange in fishes?

Accepted Answer

There are many gills, each of

Question 6

Where does gas exchange occur in the mammalian lung?

Accepted Answer

A)  The pharynx 
B)  The trachea 
C)  Bronchioles 
D)  Bronchi 
E)  Alveoli 
A)  The pharynx 
B)  The trachea 
C)  Bronchioles 
D)  Bronchi 
E)  Alveoli

Question 7

Based on this figure, which of the following contains the most oxygen?

Accepted Answer

A)  Blood entering the alveoli 
B)  Blood leaving the tissues 
C)  Blood entering the left atrium 
D)  Blood leaving the right ventricle 
A)  Blood entering the alveoli 
B)  Blood leaving the tissues 
C)  Blood entering the left atrium 
D)  Blood leaving the right ventricle

Question 8

What happens during countercurrent exchange in fishes?

Accepted Answer

A)  Oxygen and carbon dioxide move in opposite directions across the respiratory surface by facilitated diffusion. 
B)  Oxygen enters the blood by diffusion, and carbon dioxide exits the blood by active transport. 
C)  Gas exchange occurs as blood and water move in opposite directions across a respiratory surface. 
D)  Gas exchange occurs as blood and water move in the same direction across a respiratory surface. 
E)  Oxygen enters the blood by active transport, and carbon dioxide exits the blood by diffusion. 
A)  Oxygen and carbon dioxide move in opposite directions across the respiratory surface by facilitated diffusion. 
B)  Oxygen enters the blood by diffusion, and carbon dioxide exits the blood by active transport. 
C)  Gas exchange occurs as blood and water move in opposite directions across a respiratory surface. 
D)  Gas exchange occurs as blood and water move in the same direction across a respiratory surface. 
E)  Oxygen enters the blood by active transport, and carbon dioxide exits the blood by diffusion.

Question 9

Refer to this figure to determine which of the following statements is correct.

Accepted Answer

A)  Lamellae bring air within diffusing distance of each body cell. 
B)  Blood and water are flowing in opposite directions (countercurrent). 
C)  Oxygen diffuses out of blood as it flows through lamellae. 
D)  Blood and water are flowing in the same direction (concurrent). 
A)  Lamellae bring air within diffusing distance of each body cell. 
B)  Blood and water are flowing in opposite directions (countercurrent). 
C)  Oxygen diffuses out of blood as it flows through lamellae. 
D)  Blood and water are flowing in the same direction (concurrent).

Question 10

Cystic fibrosis (CF) is a disease caused by a mutation in a gene called the cystic fibrosis transmembrane conductance regulator (CFTR). The mutation causes the afflicted individual to produce thick, sticky mucus that the lining the respiratory tract can't easily remove. There is no cure for CF, and most individuals suffering from this condition die in their 20s or 30s.
Based on this scenario, what would you conclude about people who have CF?

Accepted Answer

A)  They have excessive growth rates that result in gigantism. 
B)  They have dangerously high blood pressure. 
C)  They suffer from incessant coughing and chronic lung infections. 
D)  They have extremely thin skin that is easily damaged. 
E)  They have elevated oxygen levels in their blood. 
A)  They have excessive growth rates that result in gigantism. 
B)  They have dangerously high blood pressure. 
C)  They suffer from incessant coughing and chronic lung infections. 
D)  They have extremely thin skin that is easily damaged. 
E)  They have elevated oxygen levels in their blood.

Question 11

During inhalation, air leaving the nasal cavity passes into the

Accepted Answer

A)  trachea. 
B)  bronchioles. 
C)  pharynx. 
D)  larynx. 
E)  bronchi. 
A)  trachea. 
B)  bronchioles. 
C)  pharynx. 
D)  larynx. 
E)  bronchi.

Question 12

In the lungs, oxygen moves from air into blood by

Accepted Answer

A)  active transport. 
B)  bulk flow. 
C)  diffusion. 
D)  facilitated diffusion. 
E)  osmosis. 
A)  active transport. 
B)  bulk flow. 
C)  diffusion. 
D)  facilitated diffusion. 
E)  osmosis.

Question 13

All of the following are possible EXCEPT

Accepted Answer

A)  a voluntary decrease in the rate of breathing. 
B)  a voluntary increase in the rate of breathing. 
C)  an involuntary increase in the rate of breathing. 
D)  voluntarily holding one's breath until death occurs. 
E)  inhibition of the respiratory centers in the brain. 
A)  a voluntary decrease in the rate of breathing. 
B)  a voluntary increase in the rate of breathing. 
C)  an involuntary increase in the rate of breathing. 
D)  voluntarily holding one's breath until death occurs. 
E)  inhibition of the respiratory centers in the brain.

Question 14

During gas exchange in the lungs, diffuses from the alveoli into the bloodstream capillaries, and
diffuses from the bloodstream capillaries into the alveoli.

Accepted Answer

oxygen; ca

Question 15

How much air enters the lungs of an average- sized adult when breathing normally?

Accepted Answer

A)  750 milliliters 
B)  275 milliliters 
C)  500 milliliters 
D)  125 milliliters 
E)  1,000 milliliters 
A)  750 milliliters 
B)  275 milliliters 
C)  500 milliliters 
D)  125 milliliters 
E)  1,000 milliliters

Question 16

All organisms that generate energy (ATP) aerobically need to take in oxygen and remove carbon dioxide from their bodies. This process is known as

Accepted Answer

A)  ingestion. 
B)  elimination. 
C)  absorption. 
D)  respiration. 
E)  conduction. 
A)  ingestion. 
B)  elimination. 
C)  absorption. 
D)  respiration. 
E)  conduction.

Question 17

All of the following are respiratory surfaces EXCEPT for

Accepted Answer

A)  alveoli of dogs. 
B)  skin of earthworms. 
C)  tracheae of a fly. 
D)  gills of fish. 
E)  air sacs of birds. 
A)  alveoli of dogs. 
B)  skin of earthworms. 
C)  tracheae of a fly. 
D)  gills of fish. 
E)  air sacs of birds.

Question 18

When a bumblebee lands on a flower, it pumps its abdomen up and down to move oxygen into its system of tracheae through the round openings called on its abdomen.

Accepted Answer

The answer of When a bumblebee lands on a flower,...

Question 19

Which of the following groups of animals is most efficient at extracting oxygen from the atmosphere?

Accepted Answer

A)  Mammals 
B)  Birds 
C)  Reptiles 
D)  Amphibians 
E)  Insects 
A)  Mammals 
B)  Birds 
C)  Reptiles 
D)  Amphibians 
E)  Insects

Question 20

The carbon dioxide that is exhaled when you breathe is produced during

Accepted Answer

A)  cellular respiration. 
B)  glycolysis. 
C)  intracellular digestion. 
D)  diffusion. 
E)  nitrogen fixation. 
A)  cellular respiration. 
B)  glycolysis. 
C)  intracellular digestion. 
D)  diffusion. 
E)  nitrogen fixation.

Exam 34: Respiration

Which of the following passageways delivers air directly into each lung?

What stimulates the respiratory center to increase the breathing rate?

What are spiracles?

Which of the following is NOT part of the conducting portion of the human respiratory system?

What structures make up the large surface area for gas exchange in fishes?

Where does gas exchange occur in the mammalian lung?

Based on this figure, which of the following contains the most oxygen?

What happens during countercurrent exchange in fishes?

Refer to this figure to determine which of the following statements is correct.

During inhalation, air leaving the nasal cavity passes into the

In the lungs, oxygen moves from air into blood by

All of the following are possible EXCEPT

During gas exchange in the lungs, diffuses from the alveoli into the bloodstream capillaries, and diffuses from the bloodstream capillaries into the alveoli.

How much air enters the lungs of an average- sized adult when breathing normally?

All organisms that generate energy (ATP) aerobically need to take in oxygen and remove carbon dioxide from their bodies. This process is known as

All of the following are respiratory surfaces EXCEPT for

When a bumblebee lands on a flower, it pumps its abdomen up and down to move oxygen into its system of tracheae through the round openings called on its abdomen.

Which of the following groups of animals is most efficient at extracting oxygen from the atmosphere?

The carbon dioxide that is exhaled when you breathe is produced during

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

Cellular Reproduction

Meiosis: the Basis of Sexual 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 Amid 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

Energy Flow and Nutrient Cycling in Ecosystems

Earths Diverse Ecosystems

Conserving Earths Biodiversity

Homeostasis and the Organization of the Animal Body

Circulation

Nutrition and Digestion

The Urinary System

Defenses Against Disease

Chemical Control of the Animal Body: the Endocrine System

The Nervous System

The Senses

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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