Question 1

Internal surfaces, such as those found in our lungs, reduce water loss during gas exchanges.

Accepted Answer

A) True 
 B)False

Question 2

Air leaving the lungs has

Accepted Answer

A)  a higher concentration of both oxygen and carbon dioxide than outside air. 
B)  a lower concentration of oxygen and a higher concentration of carbon dioxide than outside air. 
C)  equal concentrations of carbon dioxide and oxygen. 
D)  a lower concentration of oxygen and a lower concentration of carbon dioxide than outside air. 
A)  a higher concentration of both oxygen and carbon dioxide than outside air. 
B)  a lower concentration of oxygen and a higher concentration of carbon dioxide than outside air. 
C)  equal concentrations of carbon dioxide and oxygen. 
D)  a lower concentration of oxygen and a lower concentration of carbon dioxide than outside air.

Question 3

In human lungs, gases are exchanged in tiny sacs called

Accepted Answer

A)  gills. 
B)  tracheoles. 
C)  alveoli. 
D)  spongy parenchyma. 
A)  gills. 
B)  tracheoles. 
C)  alveoli. 
D)  spongy parenchyma.

Question 4

Which of the following would have the smallest diameter?

Accepted Answer

A)  the pharynx 
B)  the trachea 
C)  the bronchi 
D)  the bronchioles 
A)  the pharynx 
B)  the trachea 
C)  the bronchi 
D)  the bronchioles

Question 5

While observing your goldfish, you notice that its gill flaps move up and down in a constant rhythm. This movement

Accepted Answer

A)  helps the fish take in small gulps of air and store them in lung-like sacs. 
B)  requires less energy than moving air over the gills. 
C)  is unnecessary when the fish is swimming constantly. 
D)  ensures that the fish's gas exchange organs are surrounded by oxygen-rich water. 
A)  helps the fish take in small gulps of air and store them in lung-like sacs. 
B)  requires less energy than moving air over the gills. 
C)  is unnecessary when the fish is swimming constantly. 
D)  ensures that the fish's gas exchange organs are surrounded by oxygen-rich water.

Question 6

Blood plasma contains dissolved oxygen when it leaves alveoli.

Accepted Answer

A) True 
 B)False

Question 7

Why do many large animals rely on internal transport systems (like the circulatory system) to distribute oxygen?

Accepted Answer

A)  Diffusion does not occur in organisms with more than about 300 cells. 
B)  Large organisms do not need as much oxygen as small organisms so they utilize inefficient transport systems like the circulatory system rather than diffusion. 
C)  The internal transport system is needed to quickly replace oxygen lost due to the high surface area of the skin. 
D)  Diffusion is very slow over all but the shortest distances, so oxygen must be delivered to cells to speed up the process. 
A)  Diffusion does not occur in organisms with more than about 300 cells. 
B)  Large organisms do not need as much oxygen as small organisms so they utilize inefficient transport systems like the circulatory system rather than diffusion. 
C)  The internal transport system is needed to quickly replace oxygen lost due to the high surface area of the skin. 
D)  Diffusion is very slow over all but the shortest distances, so oxygen must be delivered to cells to speed up the process.

Question 8

Examine the table below.  
Based on the data in this table, which of these fish is probably the fastest swimmer?

Accepted Answer

A)  rudderfish 
B)  eel 
C)  flounder 
D)  goosefish 
A)  rudderfish 
B)  eel 
C)  flounder 
D)  goosefish

Exam 22: Gas Exchange

Internal surfaces, such as those found in our lungs, reduce water loss during gas exchanges.

Air leaving the lungs has

In human lungs, gases are exchanged in tiny sacs called

Which of the following would have the smallest diameter?

While observing your goldfish, you notice that its gill flaps move up and down in a constant rhythm. This movement

Blood plasma contains dissolved oxygen when it leaves alveoli.

Why do many large animals rely on internal transport systems (like the circulatory system) to distribute oxygen?

Examine the table below. Based on the data in this table, which of these fish is probably the fastest swimmer?

The Nature of Science and the Characteristics of Life

Organizing the Diversity of Life

Major Groups of Living Organisms

Chemical Building Blocks

Cell Structure and Internal Compartments

Cell Membranes, Transport, and Communication

Energy and Enzymes

Photosynthesis and Cellular Respiration

Cell Division

Patterns of Inheritance

Chromosomes and Human Genetics

DNA

From Gene to Protein

Control of Gene Expression

DNA Technology

How Evolution Works

Evolution of Populations

Adaptation and Speciation

The Evolutionary History of Life

Maintaining the Internal Environment

Animal Nutrition and Digestion

The Circulatory System

Animal Hormones

The Nervous System

Sensing the Environment

Skeletons, Muscles, and Movement

Defenses against Disease

Reproduction and Development

Animal Behavior

Plant Structure, Nutrition, and Transport

Plant Growth and Reproduction

The Biosphere

Growth of Populations

Interactions among Organisms

Communities of Organisms

Ecosystems

Global Change

Biodiversity and People

Cancer: Cell Division Out of Control

Harnessing the Human Genome

Humans and Evolution

Smoking--Beyond Lung Cancer

Feeding a Hungry Planet

Building a Sustainable Society

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