Question 1

A complication of an athlete injecting erythropoietin (EPO)could be

Accepted Answer

A) dehydration. 
B) heat exhaustion. 
C) decreased muscle mass. 
D) heart attack. 
A) dehydration. 
B) heat exhaustion. 
C) decreased muscle mass. 
D) heart attack. D

Question 2

The liquid portion of human blood cannot absorb enough oxygen to meet the body's demands. However, _____ in our red blood cells greatly increases the oxygen-carrying capacity of human blood.

Accepted Answer

A) carbon dioxide 
B) alveoli 
C) nodules 
D) hemoglobin 
A) carbon dioxide 
B) alveoli 
C) nodules 
D) hemoglobin D

Question 3

Gases move from an area of ____________________ concentration to an area of ____________________ concentration.

Accepted Answer

high(er), low(er)
higher, lower
high, low

Question 4

The lungs of organism A have a surface area of 10 square cm. The lungs of organism B have a surface area of 5 square cm. Based on this information, the rate of gas exchange must be higher in organism ____________________.

Accepted Answer

The answer of The lungs of organism A have a...

Question 5

When you exercise intensely, your rate of gas exchange rises because

Accepted Answer

A) muscle contraction requires oxygen to lessen the amount of ATP produced. 
B) the amount of carbon dioxide required for cellular respiration increases. 
C) the muscle cell mitochondria require more oxygen. 
D) the ratio of surface area to volume of the lungs decreases. 
A) muscle contraction requires oxygen to lessen the amount of ATP produced. 
B) the amount of carbon dioxide required for cellular respiration increases. 
C) the muscle cell mitochondria require more oxygen. 
D) the ratio of surface area to volume of the lungs decreases.

Question 6

Which of the following statements about gas concentrations in air and water is true?

Accepted Answer

A) Carbon dioxide is not found in water. 
B) Carbon dioxide occurs in similar concentrations in air and water. 
C) Oxygen occurs in similar concentrations in air and water. 
D) Oxygen occurs in higher concentrations in air than in water. 
A) Carbon dioxide is not found in water. 
B) Carbon dioxide occurs in similar concentrations in air and water. 
C) Oxygen occurs in similar concentrations in air and water. 
D) Oxygen occurs in higher concentrations in air than in water.

Question 7

An irritated pharynx could be caused by sinus drainage.

Accepted Answer

A) True 
 B)False

Question 8

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 use 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 use 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 9

Referring to the question above, which of the following responses will not be temporarily expressed by visitors to high altitudes?

Accepted Answer

A) increased blood flow 
B) increased concentration of hemoglobin in the blood 
C) increased heart rate 
D) increased attraction of hemoglobin to oxygen 
A) increased blood flow 
B) increased concentration of hemoglobin in the blood 
C) increased heart rate 
D) increased attraction of hemoglobin to oxygen

Question 10

Which of the following best describes the environment around a cell performing cellular respiration?

Accepted Answer

A) The concentration of oxygen around the cell is constantly being lowered. 
B) The concentration of oxygen around the cell causes more carbon dioxide to diffuse out of the cell. 
C) The release of products of cellular respiration causes oxygen to diffuse into the blood plasma. 
D) The carbon dioxide concentration outside the cell constantly decreases. 
A) The concentration of oxygen around the cell is constantly being lowered. 
B) The concentration of oxygen around the cell causes more carbon dioxide to diffuse out of the cell. 
C) The release of products of cellular respiration causes oxygen to diffuse into the blood plasma. 
D) The carbon dioxide concentration outside the cell constantly decreases.

Question 11

In humans and many other animals gases are transported in ____________________, which travels rapidly in a circulatory system.

Accepted Answer

The answer of In humans and many other animals gases...

Question 12

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

Accepted Answer

A) True 
 B)False

Question 13

Hemoglobin

Accepted Answer

A) is an enzyme involved in the process of cellular respiration. 
B) transports oxygen from cells undergoing cellular respiration to red blood cells. 
C) binds to oxygen and releases it near cells performing cellular respiration. 
D) makes the blood more acidic, enabling it to absorb more oxygen. 
A) is an enzyme involved in the process of cellular respiration. 
B) transports oxygen from cells undergoing cellular respiration to red blood cells. 
C) binds to oxygen and releases it near cells performing cellular respiration. 
D) makes the blood more acidic, enabling it to absorb more oxygen.

Question 14

Although blood plasma carries many electrolytes, nutrients, and other components, the vast majority of plasma is made of ____________________.

Accepted Answer

The answer of Although blood plasma carries many electrolytes, nutrients,...

Question 15

When we inhale, air moves in through the mouth or nose and next moves into the

Accepted Answer

A) bronchi. 
B) alveoli. 
C) lungs. 
D) pharynx. 
A) bronchi. 
B) alveoli. 
C) lungs. 
D) pharynx.

Question 16

More gas will diffuse through a ____________________ surface area than a ____________________ surface area.

Accepted Answer

The answer of More gas will diffuse through a ____________________...

Question 17

Red blood cells are produced in the ____________________.

Accepted Answer

The answer of Red blood cells are produced in the...

Question 18

The breaking open of alveoli in people with emphysema decreases their rate of gas exchange because

Accepted Answer

A) the distance between the air they breathe in and the blood is decreased. 
B) there is less pressure in the lungs to force the oxygen to dissolve in the blood. 
C) the concentration of oxygen in the lungs becomes much greater than that in the blood. 
D) their lungs have less surface area available for diffusion. 
A) the distance between the air they breathe in and the blood is decreased. 
B) there is less pressure in the lungs to force the oxygen to dissolve in the blood. 
C) the concentration of oxygen in the lungs becomes much greater than that in the blood. 
D) their lungs have less surface area available for diffusion.

Question 19

The image below illustrates how a continual diet of trans fats can lead to hardening of the arteries, which is a condition also known as

Accepted Answer

A) systemic thrombosis. 
B) atherosclerosis. 
C) pulmonary thrombosis. 
D) circulatory fibromatosis. 
A) systemic thrombosis. 
B) atherosclerosis. 
C) pulmonary thrombosis. 
D) circulatory fibromatosis.

Question 20

Which of the following statements is true?

Accepted Answer

A) Oxygen moves into cells by diffusion, but carbon dioxide is moved by active transport. 
B) Oxygen and carbon dioxide move into and out of cells and alveoli passively by diffusion. 
C) Carbon dioxide and oxygen are actively transported into and out of blood by diffusion. 
D) Oxygen moves into cells by diffusion, but in the alveoli it is actively transported. 
A) Oxygen moves into cells by diffusion, but carbon dioxide is moved by active transport. 
B) Oxygen and carbon dioxide move into and out of cells and alveoli passively by diffusion. 
C) Carbon dioxide and oxygen are actively transported into and out of blood by diffusion. 
D) Oxygen moves into cells by diffusion, but in the alveoli it is actively transported.

Exam 28: Circulation and Gas Exchange

A complication of an athlete injecting erythropoietin (EPO)could be

The liquid portion of human blood cannot absorb enough oxygen to meet the body's demands. However, _____ in our red blood cells greatly increases the oxygen-carrying capacity of human blood.

Gases move from an area of ____________________ concentration to an area of ____________________ concentration.

The lungs of organism A have a surface area of 10 square cm. The lungs of organism B have a surface area of 5 square cm. Based on this information, the rate of gas exchange must be higher in organism ____________________.

When you exercise intensely, your rate of gas exchange rises because

Which of the following statements about gas concentrations in air and water is true?

An irritated pharynx could be caused by sinus drainage.

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

Referring to the question above, which of the following responses will not be temporarily expressed by visitors to high altitudes?

Which of the following best describes the environment around a cell performing cellular respiration?

In humans and many other animals gases are transported in ____________________, which travels rapidly in a circulatory system.

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

Hemoglobin

Although blood plasma carries many electrolytes, nutrients, and other components, the vast majority of plasma is made of ____________________.

When we inhale, air moves in through the mouth or nose and next moves into the

More gas will diffuse through a ____________________ surface area than a ____________________ surface area.

Red blood cells are produced in the ____________________.

The breaking open of alveoli in people with emphysema decreases their rate of gas exchange because

The image below illustrates how a continual diet of trans fats can lead to hardening of the arteries, which is a condition also known as

Which of the following statements is true?

The Nature of Science and the Characteristics of Life

Biological Diversity, Bacteria, and Archaea

Protista, Plantae, and Fungi

Animalia

The Chemistry of Life

Cell Structure and Internal Compartments

Cell Membranes, Transport, and Communication

Energy, Metabolism, and Enzymes

Photosynthesis and Cellular Respiration

Cell Division

Stem Cells, Cancer, and Human Health

Patterns of Inheritance

Chromosomes and Human Genetics

Dna and Genes

From Gene to Protein

Dna Technology

How Evolution Works

Evolution of Populations

Speciation and the Origins of Biological Diversity

The Evolutionary History of Life

The Biosphere

Growth of Populations

Ecological Communities

Ecosystems

Global Change

Internal Organization and Homeostasis

Nutrition and Digestion

Animal Hormones

Nervous and Sensory Systems

Skeletons, Muscles, and Movement

Defenses Against Disease

Reproduction and Development

Animal Behavior

Plant Structure, Nutrition, and Transport

Plant Growth and Reproduction

Filters

Gases move from an area of concentration to an area of concentration.

More gas will diffuse through a surface area than a surface area.