Question 1

What is the function of surfactant?

Accepted Answer

A)  It stimulates activity of the cilia lining the walls of the alveoli. 
B)  It prevents the alveoli from sticking together and collapsing. 
C)  It increases surface tension. 
D)  It increases alveolar expansion. 
E)  It enhances contraction of the inspiratory muscles. 
A)  It stimulates activity of the cilia lining the walls of the alveoli. 
B)  It prevents the alveoli from sticking together and collapsing. 
C)  It increases surface tension. 
D)  It increases alveolar expansion. 
E)  It enhances contraction of the inspiratory muscles.

Question 2

How can a sponge deliver oxygen to every cell of its body without a respiratory system?

Accepted Answer

A sponge uses ciliated cells t

Question 3

What causes smokerʹs cough?

Accepted Answer

A)  Carbon monoxide in the smoke triggers the cough reflex. 
B)  Smoking damages the cilia that normally remove debris-laden mucus. 
C)  Nicotine irritates the lining of the lung. 
D)  Smoking affects the respiratory center neurons in the medulla. 
A)  Carbon monoxide in the smoke triggers the cough reflex. 
B)  Smoking damages the cilia that normally remove debris-laden mucus. 
C)  Nicotine irritates the lining of the lung. 
D)  Smoking affects the respiratory center neurons in the medulla.

Question 4

Why is gas exchange in an aquatic environment more challenging than gas exchange in the air?

Accepted Answer

A)  The countercurrent exchange process limits the amount of oxygen that can be extracted from water. 
B)  The large surface area of gills makes them more susceptible to drying out. 
C)  Gills have a poor blood supply. 
D)  Less oxygen is available in water than in air. 
E)  Carbon dioxide is eliminated by active transport in an aquatic environment. 
A)  The countercurrent exchange process limits the amount of oxygen that can be extracted from water. 
B)  The large surface area of gills makes them more susceptible to drying out. 
C)  Gills have a poor blood supply. 
D)  Less oxygen is available in water than in air. 
E)  Carbon dioxide is eliminated by active transport in an aquatic environment.

Question 5

For smokers who quit smoking, when does healing begin?

Accepted Answer

A)  After a year 
B)  After 6 months 
C)  Almost immediately 
D)  After 5 years 
A)  After a year 
B)  After 6 months 
C)  Almost immediately 
D)  After 5 years

Question 6

If a respiratory surface dries out, gas exchange will

Accepted Answer

A)  not be affected. 
B)  decrease for carbon dioxide but increase for oxygen. 
C)  not occur. 
D)  decrease for oxygen but increase for carbon dioxide. 
E)  increase. 
A)  not be affected. 
B)  decrease for carbon dioxide but increase for oxygen. 
C)  not occur. 
D)  decrease for oxygen but increase for carbon dioxide. 
E)  increase.

Question 7

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

Question 8

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 9

The respiratory control center is located in the

Accepted Answer

A)  medulla. 
B)  diaphragm. 
C)  cortex. 
D)  spinal cord. 
E)  hypothalamus. 
A)  medulla. 
B)  diaphragm. 
C)  cortex. 
D)  spinal cord. 
E)  hypothalamus.

Question 10

Imagine that a patient is admitted to the hospital after falling from the second-story window of her apartment. Tests reveal no injuries other than some swelling in the brain. Why, then, would her breathing become irregular?

Accepted Answer

A)  Her tissues require more oxygen for healing. 
B)  The respiratory center in the lungs is malfunctioning due to a lack of carbon dioxide. 
C)  The damage to the brain is affecting the respiratory center in the medulla. 
D)  Her swollen brain is causing a decrease in blood pressure. 
E)  The blood returning to the lungs from the brain is too high in oxygen. 
A)  Her tissues require more oxygen for healing. 
B)  The respiratory center in the lungs is malfunctioning due to a lack of carbon dioxide. 
C)  The damage to the brain is affecting the respiratory center in the medulla. 
D)  Her swollen brain is causing a decrease in blood pressure. 
E)  The blood returning to the lungs from the brain is too high in oxygen.

Question 11

Which of the following structures protects the delicate gills of many fish?

Accepted Answer

A)  An operculum 
B)  Tracheoles 
C)  Lamellae 
D)  Spiracles 
E)  An alveolus 
A)  An operculum 
B)  Tracheoles 
C)  Lamellae 
D)  Spiracles 
E)  An alveolus

Question 12

Which of the following statements about gas exchange in animals with interacting circulatory and respiratory systems is FALSE?

Accepted Answer

A)  Gases are transported in the circulatory system by the bulk flow of blood. 
B)  Carbon dioxide moves from the tissues into the blood by diffusion. 
C)  Air or water moves across the respiratory surface by bulk flow. 
D)  Oxygen is actively transported into the circulatory system. 
E)  Oxygen and carbon dioxide pass through respiratory membranes by diffusion. 
A)  Gases are transported in the circulatory system by the bulk flow of blood. 
B)  Carbon dioxide moves from the tissues into the blood by diffusion. 
C)  Air or water moves across the respiratory surface by bulk flow. 
D)  Oxygen is actively transported into the circulatory system. 
E)  Oxygen and carbon dioxide pass through respiratory membranes by diffusion.

Question 13

Gas exchange in the lungs occurs as a result of

Accepted Answer

A)  active transport of gases between the blood and the alveolus. 
B)  facilitated diffusion of gases between the hemoglobin and the alveolus. 
C)  facilitated diffusion of gases between the blood and the alveolus. 
D)  diffusion of gases between the blood and the alveolus. 
E)  active transport of gases between hemoglobin and the alveolus. 
A)  active transport of gases between the blood and the alveolus. 
B)  facilitated diffusion of gases between the hemoglobin and the alveolus. 
C)  facilitated diffusion of gases between the blood and the alveolus. 
D)  diffusion of gases between the blood and the alveolus. 
E)  active transport of gases between hemoglobin and the alveolus.

Question 14

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

Accepted Answer

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

Question 15

How do bulk flow and diffusion interact to enable respiratory systems to deliver oxygen quickly to all cells of the body?

Accepted Answer

Bulk flow carries oxygen quick

Question 16

Which of the following structures is NOT part of an insect respiratory system?

Accepted Answer

A)  Tracheoles 
B)  Tracheae 
C)  Parabronchi 
D)  Spiracles 
A)  Tracheoles 
B)  Tracheae 
C)  Parabronchi 
D)  Spiracles

Question 17

Identify the animal that lacks a specialized respiratory organ.

Accepted Answer

A)  Trout 
B)  Sponge 
C)  Bat 
D)  Bird 
E)  Grasshopper 
A)  Trout 
B)  Sponge 
C)  Bat 
D)  Bird 
E)  Grasshopper

Question 18

Describe how fishes are able to extract oxygen from water.

Accepted Answer

Countercurrent exchange occurs

Question 19

Gills are respiratory structures found in fish, nudibranch mollusks, and some amphibians.

Accepted Answer

A) True 
 B)False

Question 20

Which sequence of animals represents the evolution of animal respiratory systems?

Accepted Answer

A)  Bird, lizard, salamander, fish 
B)  Fish, salamander, lizard, bird 
C)  Fish, lizard, salamander, bird 
D)  Salamander, lizard, fish, bird 
E)  Lizard, fish, bird, salamander 
A)  Bird, lizard, salamander, fish 
B)  Fish, salamander, lizard, bird 
C)  Fish, lizard, salamander, bird 
D)  Salamander, lizard, fish, bird 
E)  Lizard, fish, bird, salamander

Exam 34: Respiration

What is the function of surfactant?

How can a sponge deliver oxygen to every cell of its body without a respiratory system?

What causes smokerʹs cough?

Why is gas exchange in an aquatic environment more challenging than gas exchange in the air?

For smokers who quit smoking, when does healing begin?

If a respiratory surface dries out, gas exchange will

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

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.

The respiratory control center is located in the

Imagine that a patient is admitted to the hospital after falling from the second-story window of her apartment. Tests reveal no injuries other than some swelling in the brain. Why, then, would her breathing become irregular?

Which of the following structures protects the delicate gills of many fish?

Which of the following statements about gas exchange in animals with interacting circulatory and respiratory systems is FALSE?

Gas exchange in the lungs occurs as a result of

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

How do bulk flow and diffusion interact to enable respiratory systems to deliver oxygen quickly to all cells of the body?

Which of the following structures is NOT part of an insect respiratory system?

Identify the animal that lacks a specialized respiratory organ.

Describe how fishes are able to extract oxygen from water.

Gills are respiratory structures found in fish, nudibranch mollusks, and some amphibians.

Which sequence of animals represents the evolution of animal respiratory systems?

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

Filters