Question 1

Which of the following is NOT a feature shared by all animal respiratory surfaces?

Accepted Answer

A)  They are associated with a capillary bed. 
B)  They are moist. 
C)  They have a large surface area. 
D)  They are thin. 
A)  They are associated with a capillary bed. 
B)  They are moist. 
C)  They have a large surface area. 
D)  They are thin.

Question 2

Most of the carbon dioxide released from cells is transported in the blood as

Accepted Answer

A)  carbohydrates, such as glucose. 
B)  bicarbonate ions in the plasma. 
C)  carbon dioxide attached to hemoglobin. 
D)  dissolved carbon monoxide. 
A)  carbohydrates, such as glucose. 
B)  bicarbonate ions in the plasma. 
C)  carbon dioxide attached to hemoglobin. 
D)  dissolved carbon monoxide.

Question 3

What structure prevents food from entering the larynx?

Accepted Answer

A)  Intercostal muscle 
B)  Respiratory membrane 
C)  Diaphragm 
D)  Bronchus 
E)  Epiglottis 
A)  Intercostal muscle 
B)  Respiratory membrane 
C)  Diaphragm 
D)  Bronchus 
E)  Epiglottis

Question 4

How are birds able to get fresh air even when they are exhaling?

Accepted Answer

Birds have posterior air sacs

Question 5

The cells that line the human respiratory passageways secrete

Accepted Answer

A)  water. 
B)  enzymes. 
C)  blood. 
D)  hormones. 
E)  mucus. 
A)  water. 
B)  enzymes. 
C)  blood. 
D)  hormones. 
E)  mucus.

Question 6

Horsehair worms, in the phylum Nematomorpha, do not have a respiratory system. They are usually found in p of water or on damp sidewalks and patios, or they may come wiggling out of insects. These creatures have no ec importance other than being parasitic to some insects. Based on this scenario, horsehair worms are most likely to

Accepted Answer

A)  have a large surface area compared with their volume. 
B)  be unable to efficiently digest food. 
C)  have a dry skin surface. 
D)  have very thick bodies. 
E)  use large amounts of energy. 
A)  have a large surface area compared with their volume. 
B)  be unable to efficiently digest food. 
C)  have a dry skin surface. 
D)  have very thick bodies. 
E)  use large amounts of energy.

Question 7

The operculum of fishes covers the gills, protecting them from damage and predators. What additional functions does the operculum have?

Accepted Answer

It streamlines the b

Question 8

Carbon dioxide can be transported in the blood by all of the following methods, EXCEPT

Accepted Answer

A)  carried in plasma as HCO3- . 
B)  as CO within red blood cells. 
C)  bound to hemoglobin. 
D)  dissolved in plasma as CO2. 
A)  carried in plasma as HCO3- . 
B)  as CO within red blood cells. 
C)  bound to hemoglobin. 
D)  dissolved in plasma as CO2.

Question 9

How is the diffusion of oxygen and carbon dioxide related to their concentration gradients?

Accepted Answer

Oxygen and carbon dioxide mole

Question 10

The receptors in the respiratory center are most sensitive to a small

Accepted Answer

A)  increase in blood pH. 
B)  decrease in blood oxygen levels. 
C)  decrease in blood nitrogen levels. 
D)  increase in blood oxygen levels. 
E)  increase in blood carbon dioxide levels. 
A)  increase in blood pH. 
B)  decrease in blood oxygen levels. 
C)  decrease in blood nitrogen levels. 
D)  increase in blood oxygen levels. 
E)  increase in blood carbon dioxide levels.

Question 11

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

Accepted Answer

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

Question 12

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 13

Vertebrate lungs probably evolved from simple outpocketings of the digestive tract of a freshwater fish.

Accepted Answer

A) True 
 B)False

Question 14

The cells of cnidarians use relatively little energy, so their demand for oxygen is quite low. They deliver oxygen to their internal cells by pumping water into and out of a central chamber called the _ _.

Accepted Answer

gastrovasc

Question 15

For smokers who quit smoking, when does healing begin?

Accepted Answer

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

Question 16

Birds are able to sustain long flights at high altitudes because they

Accepted Answer

A)  can extract oxygen during both inhalation and exhalation. 
B)  decrease their heart rate during flight. 
C)  are able to lower their body temperature during flight. 
D)  have thicker blood than other animals, with many more red blood cells. 
E)  use anaerobic metabolism during flight. 
A)  can extract oxygen during both inhalation and exhalation. 
B)  decrease their heart rate during flight. 
C)  are able to lower their body temperature during flight. 
D)  have thicker blood than other animals, with many more red blood cells. 
E)  use anaerobic metabolism during flight.

Question 17

The vocal cords are located in the

Accepted Answer

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

Question 18

Which of the following organisms would use its skin as a primary respiratory surface?

Accepted Answer

A)  Lizard 
B)  Snake 
C)  Turtle 
D)  Salamander 
E)  Bird 
A)  Lizard 
B)  Snake 
C)  Turtle 
D)  Salamander 
E)  Bird

Question 19

Identify the animal that lacks a specialized respiratory organ.

Accepted Answer

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

Question 20

The respiratory center is very sensitive to changes in levels, but not very sensitive to changes in levels.

Accepted Answer

A)  blood sugar; hormone 
B)  hormone; blood sugar 
C)  oxygen; carbon dioxide 
D)  temperature; blood pressure 
E)  carbon dioxide; oxygen 
A)  blood sugar; hormone 
B)  hormone; blood sugar 
C)  oxygen; carbon dioxide 
D)  temperature; blood pressure 
E)  carbon dioxide; oxygen

Exam 34: Respiration

Which of the following is NOT a feature shared by all animal respiratory surfaces?

Most of the carbon dioxide released from cells is transported in the blood as

What structure prevents food from entering the larynx?

How are birds able to get fresh air even when they are exhaling?

The cells that line the human respiratory passageways secrete

The operculum of fishes covers the gills, protecting them from damage and predators. What additional functions does the operculum have?

Carbon dioxide can be transported in the blood by all of the following methods, EXCEPT

How is the diffusion of oxygen and carbon dioxide related to their concentration gradients?

The receptors in the respiratory center are most sensitive to a small

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

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

Vertebrate lungs probably evolved from simple outpocketings of the digestive tract of a freshwater fish.

The cells of cnidarians use relatively little energy, so their demand for oxygen is quite low. They deliver oxygen to their internal cells by pumping water into and out of a central chamber called the _ _.

For smokers who quit smoking, when does healing begin?

Birds are able to sustain long flights at high altitudes because they

The vocal cords are located in the

Which of the following organisms would use its skin as a primary respiratory surface?

Identify the animal that lacks a specialized respiratory organ.

The respiratory center is very sensitive to changes in levels, but not very sensitive to changes in levels.

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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