Question 1

Internal respiration

Accepted Answer

A)  moves carbon dioxide from tissues into the blood. 
B)  moves oxygen from tissues into the blood. 
C)  moves oxygen from the blood into tissues and carbon dioxide in the opposite direction. 
D)  moves oxygen from tissues into the blood and carbon dioxide in the opposite direction. 
E)  moves both oxygen and carbon dioxide from tissues into the blood. 
A)  moves carbon dioxide from tissues into the blood. 
B)  moves oxygen from tissues into the blood. 
C)  moves oxygen from the blood into tissues and carbon dioxide in the opposite direction. 
D)  moves oxygen from tissues into the blood and carbon dioxide in the opposite direction. 
E)  moves both oxygen and carbon dioxide from tissues into the blood.

Question 2

Breathing that stops briefly and then resumes spontaneously is called

Accepted Answer

A)  apnea. 
B)  tachypnea. 
C)  bradypnea. 
D)  pneumotaxia. 
E)  hyperventilation. 
A)  apnea. 
B)  tachypnea. 
C)  bradypnea. 
D)  pneumotaxia. 
E)  hyperventilation.

Question 3

Which enzyme, produced by cells in the lungs, works with the endocrine system to influence urine production?

Accepted Answer

A)  carbonic anhydrase 
B)  amylase 
C)  angiotensin-converting enzyme 
D)  creatine phosphokinase 
E)  lactic dehydrogenase 
A)  carbonic anhydrase 
B)  amylase 
C)  angiotensin-converting enzyme 
D)  creatine phosphokinase 
E)  lactic dehydrogenase

Question 4

Infant respiratory distress syndrome is caused by

Accepted Answer

A)  surfactant-secreting cells that do not work yet. 
B)  underdeveloped alveoli. 
C)  clogged bronchioles. 
D)  underdeveloped bronchi. 
E)  small lungs. 
A)  surfactant-secreting cells that do not work yet. 
B)  underdeveloped alveoli. 
C)  clogged bronchioles. 
D)  underdeveloped bronchi. 
E)  small lungs.

Question 5

Which respiratory disease may spread to other parts of the body?

Accepted Answer

A)  pneumonia 
B)  tuberculosis 
C)  SARS 
D)  emphysema 
E)  asthma 
A)  pneumonia 
B)  tuberculosis 
C)  SARS 
D)  emphysema 
E)  asthma

Question 6

The most abundant gas in the earth's atmosphere is

Accepted Answer

A)  oxygen. 
B)  water vapor. 
C)  argon. 
D)  nitrogen. 
E)  carbon dioxide. 
A)  oxygen. 
B)  water vapor. 
C)  argon. 
D)  nitrogen. 
E)  carbon dioxide.

Question 7

The concentration of carbon dioxide in the earth's atmosphere is

Accepted Answer

A)  0.004 percent. 
B)  0.04 percent. 
C)  0.4 percent. 
D)  4.0 percent. 
E)  40 percent. 
A)  0.004 percent. 
B)  0.04 percent. 
C)  0.4 percent. 
D)  4.0 percent. 
E)  40 percent.

Question 8

The normal vital capacity for a female is

Accepted Answer

A)  1000 milliliters. 
B)  2000 milliliters. 
C)  4800 milliliters. 
D)  3800 milliliters. 
E)  5200 milliliters. 
A)  1000 milliliters. 
B)  2000 milliliters. 
C)  4800 milliliters. 
D)  3800 milliliters. 
E)  5200 milliliters.

Question 9

The breakdown of alveoli causes

Accepted Answer

A)  emphysema 
B)  bronchitis 
C)  pleurisy 
D)  pneumothorax 
E)  tuberculosis 
A)  emphysema 
B)  bronchitis 
C)  pleurisy 
D)  pneumothorax 
E)  tuberculosis

Question 10

The gap between the vocal cords that is the opening to the larynx is the

Accepted Answer

A)  epiglottis. 
B)  pharynx. 
C)  nasopharynx. 
D)  glottis. 
E)  oropharynx. 
A)  epiglottis. 
B)  pharynx. 
C)  nasopharynx. 
D)  glottis. 
E)  oropharynx.

Question 11

Most of the carbon dioxide produced by the body is transported to the lungs

Accepted Answer

A)  as a gas. 
B)  dissolved in blood plasma. 
C)  bound to potassium carbonate ions. 
D)  as bicarbonate ions. 
E)  as carbonic acid molecules. 
A)  as a gas. 
B)  dissolved in blood plasma. 
C)  bound to potassium carbonate ions. 
D)  as bicarbonate ions. 
E)  as carbonic acid molecules.

Question 12

In humans ventilation is powered by

Accepted Answer

A)  the diaphragm only. 
B)  muscles attached to the ribs only. 
C)  the lungs themselves. 
D)  the diaphragm and rib muscles. 
E)  the heart. 
A)  the diaphragm only. 
B)  muscles attached to the ribs only. 
C)  the lungs themselves. 
D)  the diaphragm and rib muscles. 
E)  the heart.

Question 13

DPG (2,3 - diphosphoglycerate) is produced when

Accepted Answer

A)  carbon dioxide builds up. 
B)  oxygen levels are high. 
C)  tissues chronically receive too little oxygen. 
D)  bicarbonate ion is low. 
E)  sodium levels rise. 
A)  carbon dioxide builds up. 
B)  oxygen levels are high. 
C)  tissues chronically receive too little oxygen. 
D)  bicarbonate ion is low. 
E)  sodium levels rise.

Question 14

The oxygen content of air at sea level is approximately

Accepted Answer

A)  21 percent. 
B)  78 percent. 
C)  0.04 percent. 
D)  0.96 percent. 
E)  100 percent. 
A)  21 percent. 
B)  78 percent. 
C)  0.04 percent. 
D)  0.96 percent. 
E)  100 percent.

Question 15

When you swallow, the epiglottis covers the opening to the

Accepted Answer

A)  pharynx. 
B)  esophagus. 
C)  larynx. 
D)  bronchus. 
E)  alveoli. 
A)  pharynx. 
B)  esophagus. 
C)  larynx. 
D)  bronchus. 
E)  alveoli.

Question 16

An adult typically breathes ____ times per minute.

Accepted Answer

A)  10 
B)  12 
C)  14 
D)  16 
E)  20 
A)  10 
B)  12 
C)  14 
D)  16 
E)  20

Question 17

At high altitudes, people with heart disease may experience

Accepted Answer

A)  "the bends." 
B)  reduced breathing rate. 
C)  decreased production of red blood cells. 
D)  angina. 
E)  reduced hemoglobin concentrations. 
A)  "the bends." 
B)  reduced breathing rate. 
C)  decreased production of red blood cells. 
D)  angina. 
E)  reduced hemoglobin concentrations.

Question 18

Which structure(s) provide a huge surface area for diffusion of gasses?

Accepted Answer

A)  the bronchi 
B)  the bronchioles 
C)  the trachea 
D)  the alveoli 
E)  the lungs 
A)  the bronchi 
B)  the bronchioles 
C)  the trachea 
D)  the alveoli 
E)  the lungs

Question 19

Which statement is NOT true?

Accepted Answer

A)  Carbon dioxide is more soluble in fluid than in oxygen. 
B)  Carbon dioxide diffuses more rapidly across the respiratory surface than oxygen does. 
C)  The major muscle involved in breathing is the diaphragm. 
D)  Oxygen is carried primarily by blood plasma. 
E)  Carbon dioxide is carried by the blood plasma. 
A)  Carbon dioxide is more soluble in fluid than in oxygen. 
B)  Carbon dioxide diffuses more rapidly across the respiratory surface than oxygen does. 
C)  The major muscle involved in breathing is the diaphragm. 
D)  Oxygen is carried primarily by blood plasma. 
E)  Carbon dioxide is carried by the blood plasma.

Question 20

Which structure(s) of the respiratory system work with the immune system?

Accepted Answer

A)  cilia and mucus 
B)  alveoli 
C)  bronchioles 
D)  the trachea 
E)  bronchi and bronchioles 
A)  cilia and mucus 
B)  alveoli 
C)  bronchioles 
D)  the trachea 
E)  bronchi and bronchioles

Exam 10: The Respiratory System

Internal respiration

Breathing that stops briefly and then resumes spontaneously is called

Which enzyme, produced by cells in the lungs, works with the endocrine system to influence urine production?

Infant respiratory distress syndrome is caused by

Which respiratory disease may spread to other parts of the body?

The most abundant gas in the earth's atmosphere is

The concentration of carbon dioxide in the earth's atmosphere is

The normal vital capacity for a female is

The breakdown of alveoli causes

The gap between the vocal cords that is the opening to the larynx is the

Most of the carbon dioxide produced by the body is transported to the lungs

In humans ventilation is powered by

DPG (2,3 - diphosphoglycerate) is produced when

The oxygen content of air at sea level is approximately

When you swallow, the epiglottis covers the opening to the

An adult typically breathes ____ times per minute.

At high altitudes, people with heart disease may experience

Which structure(s) provide a huge surface area for diffusion of gasses?

Which statement is NOT true?

Which structure(s) of the respiratory system work with the immune system?

Learning About Human Biology

Chemistry of Life

Cells and How They Work

Tissues, Organs, and Organ Systems

The Skeletal System

The Muscular System

Circulation: the Heart and Blood Vessels

Blood

Immunity and Disease

Digestion and Nutrition

The Urinary System

The Nervous System

Sensory Systems

The Endocrine System

Reproductive Systems

Development and Aging

Cell Reproduction

Introduction to Genetics

Chromosomes and Human Genetics

DNA, Genes, and Biotechnology

Genes and Disease: Cancer

Principles of Evolution

Principles of Ecology

Human Impacts on the Biosphere

Filters