Question 1

The percentage of carbon dioxide in inhaled air at sea level is about:

Accepted Answer

A)  10%
B)  5%
C)  1%
D)  .03%
E)  .5%F) B) and D)
G) B) and C)

Question 2

A human baby is considered premature if it is born at 37 weeks or earlier.

Accepted Answer

A) True 
 B)False

Question 3

The anatomical arrangement in which two adjacent currents flow in opposite directions and exchange materials with each other is found in the respiratory systems of which of the following?

Accepted Answer

A)  Mammals
B)  Birds
C)  Fish
D)  Worms
E)  Sea anemonesF) C) and D)
G) A) and D)

Question 4

Which of the following is an inherited respiratory disease that causes sticky mucus to accumulate in the lungs?

Accepted Answer

A)  Tuberculosis
B)  Cystic fibrosis
C)  Apnea
D)  Emphysema
E)  The common coldF) B) and D)
G) A) and D)

Question 5

In arthropods,the extensively branched internal tubules that connect to the atmosphere through the exoskeleton are:

Accepted Answer

A)  Spicules
B)  Tracheae
C)  Alveoli
D)  Spiracles
E)  GillsF) None of the above
G) B) and D)

Question 6

The openings in the exoskeleton of arthropods that allow oxygen into highly branched internal tubules that branch around individual body cells are:

Accepted Answer

A)  Spicules
B)  Alveoli
C)  Tracheae
D)  Spiracles
E)  GillsF) A) and D)
G) A) and E)

Question 7

The cessation of breathing is termed:

Accepted Answer

A)  Pneumonia
B)  Apnea
C)  Scleroderma
D)  Asthma
E)  EmphysemaF) C) and E)
G) A) and E)

Question 8

The percentage of oxygen in inhaled air at sea level is about:

Accepted Answer

A)  .03%
B)  5%
C)  10%
D)  20%
E)  30%F) C) and E)
G) None of the above

Question 9

Olfaction is:

Accepted Answer

A)  The sense of smell
B)  The sense of hearing
C)  The sense of taste
D)  The sense of vision
E)  The sense of touchF) A) and E)
G) A) and B)

Question 10

One of the main reasons that we exhale a higher percentage of carbon dioxide than we inhale is:

Accepted Answer

A)  We use carbon dioxide to make glucose
B)  We produce carbon dioxide as a byproduct of aerobic respiration
C)  We produce carbon dioxide as a byproduct of transmission of nerve impulses across synapses
D)  Carbon dioxide is a byproduct of photosynthesis
E)  Carbon dioxide dissolves better in blood than does oxygenF) A) and D)
G) A) and B)

Question 11

A respiratory disease caused by an allergic response that causes spasms in the smooth muscle of the lung's bronchi is:

Accepted Answer

A)  Cystic fibrosis
B)  Emphysema
C)  Apnea
D)  Asthma
E)  TuberculosisF) B) and D)
G) None of the above

Question 12

What is the advantage of an insect having air-filled tracheae and spiracles over taking up oxygen through their skin?

Accepted Answer

A)  They increase surface area
B)  Gasses diffuse more rapidly in air
C)  They increase surface area and gasses diffuse more rapidly in air
D)  They act like a lung and move air into the insect
E)  They act like a lung and move air into the insect and also increase surface areaF) C) and E)
G) A) and E)

Question 13

The concentration of oxygen is decreased at high altitude.Why would this make it harder for a person to get enough oxygen into their blood?

Accepted Answer

A)  Hemoglobin cannot bind oxygen well at low concentrations
B)  The concentration gradient from the alveoli to the blood decreases
C)  People are working harder at high altitude and have higher demands for oxygen
D)  The concentration of oxygen in the blood is too low for diffusion into tissues
E)  The heart cannot obtain enough energy to pump oxygen into the blood from the alveoliF) C) and D)
G) None of the above

Question 14

What drives the movement of carbon dioxide from tissue into the bloodstream?

Accepted Answer

A)  Active transport against a concentration gradient
B)  Facilitated diffusion down a concentration gradient
C)  Diffusion down a concentration gradient
D)  Facilitated diffusion against a concentration gradient
E)  The heart pumping the carbon dioxide into the bloodstreamF) None of the above
G) A) and B)

Question 15

Sleep apnea is more common in people who are overweight.Excess fat in the neck compresses the ____ cutting off air flow.

Accepted Answer

A)  Larynx
B)  Thorax
C)  Bronchi
D)  Lungs
E)  AlveoliF) A) and E)
G) D) and E)

Question 16

Individuals with asthma have difficulty exhaling.Air has to pass through the same narrowed airway on the way in and out,why would exhaling be more difficult than inhaling?

Accepted Answer

A)  Air is denser when it is exhaled
B)  People have to concentrate on exhaling, while inhaling is a reflex
C)  Exhaling requires more energy than inhaling
D)  Inhaling uses muscle contractions while exhaling is passive
E)  The alveoli have lost their walls, and cannot push the air out anymoreF) B) and E)
G) B) and C)

Question 17

In cystic fibrosis,a thick dry mucus builds up in the alveoli.Which of the following would you expect to occur in these patients?

Accepted Answer

A)  Decreased rate of respiration
B)  Increased diffusion of carbon dioxide into capillaries from the alveoli
C)  Decreased blood flow to the alveoli
D)  Increased blood flow to the alveoli
E)  Decreased diffusion of oxygen into capillaries from the alveoliF) A) and C)
G) None of the above

Question 18

figure 30.15 
-What is the dependent variable in figure 30.15?

Accepted Answer

A)  Partial pressure of oxygen in the tracheae
B)  The number of times the spiracles are open
C)  The number of moth pupae
D)  The external concentration of oxygen
E)  The size of each moth pupaF) C) and E)
G) None of the above

Question 19

The small air sacs of the lungs are the:

Accepted Answer

A)  Alveoli
B)  Bronchioles
C)  Arterioles
D)  Spiracles
E)  UvulaF) A) and D)
G) B) and E)

Question 20

The walls of the bronchioles are made up of:

Accepted Answer

A)  Cartilage
B)  Smooth muscle
C)  Cartilage and smooth muscle
D)  Cartilage and skeletal muscle
E)  Skeletal muscleF) None of the above
G) D) and E)

Exam 30: The Respiratory System

One of the main reasons that we exhale a higher percentage of carbon dioxide than we inhale is:

Correct AnswerverifiedShow Answer

The percentage of oxygen in inhaled air at sea level is about:

Correct AnswerverifiedShow Answer

What is the advantage of an insect having air-filled tracheae and spiracles over taking up oxygen through their skin?

Correct AnswerverifiedShow Answer

The cessation of breathing is termed:

Correct AnswerverifiedShow Answer

The openings in the exoskeleton of arthropods that allow oxygen into highly branched internal tubules that branch around individual body cells are:

Correct AnswerverifiedShow Answer

The walls of the bronchioles are made up of:

Correct AnswerverifiedShow Answer

Sleep apnea is more common in people who are overweight.Excess fat in the neck compresses the ____ cutting off air flow.

Correct AnswerverifiedShow Answer

Individuals with asthma have difficulty exhaling.Air has to pass through the same narrowed airway on the way in and out,why would exhaling be more difficult than inhaling?

Correct AnswerverifiedShow Answer

Olfaction is:

Correct AnswerverifiedShow Answer

In cystic fibrosis,a thick dry mucus builds up in the alveoli.Which of the following would you expect to occur in these patients?

Correct AnswerverifiedShow Answer

The small air sacs of the lungs are the:

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What drives the movement of carbon dioxide from tissue into the bloodstream?

Correct AnswerverifiedShow Answer

figure 30.15 -What is the dependent variable in figure 30.15?

Correct AnswerverifiedShow Answer

The anatomical arrangement in which two adjacent currents flow in opposite directions and exchange materials with each other is found in the respiratory systems of which of the following?

Correct AnswerverifiedShow Answer

A respiratory disease caused by an allergic response that causes spasms in the smooth muscle of the lung's bronchi is:

Correct AnswerverifiedShow Answer

In arthropods,the extensively branched internal tubules that connect to the atmosphere through the exoskeleton are:

Correct AnswerverifiedShow Answer

The percentage of carbon dioxide in inhaled air at sea level is about:

Correct AnswerverifiedShow Answer

A human baby is considered premature if it is born at 37 weeks or earlier.

Correct AnswerverifiedShow Answer

Which of the following is an inherited respiratory disease that causes sticky mucus to accumulate in the lungs?

Correct AnswerverifiedShow Answer

The concentration of oxygen is decreased at high altitude.Why would this make it harder for a person to get enough oxygen into their blood?

Correct AnswerverifiedShow Answer

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