Chapter 8

Question 1

What is the primary function of the respiratory system?

Answer 1

To facilitate the exchange of gases, primarily oxygen and carbon dioxide.

Question 2

True or False: The human respiratory system includes the lungs, trachea, and diaphragm.

Answer 2

True

Question 3

Fill in the blank: The process of breathing in is called ______.

Answer 3

inhalation

Question 4

What is the role of the diaphragm in respiration?

Answer 4

The diaphragm contracts and relaxes to help move air in and out of the lungs.

Question 5

Which organ is responsible for the exchange of gases in humans?

Answer 5

Lungs

Question 6

What are the tiny air sacs in the lungs called?

Answer 6

Alveoli

Question 7

Multiple choice: Which gas do humans primarily exhale?

Answer 7

Carbon dioxide

Question 8

What is the term for the windpipe that conducts air to the lungs?

Answer 8

Trachea

Question 9

True or False: Fish use gills for respiration.

Answer 9

True

Question 10

Fill in the blank: In insects, the respiratory system consists of a network of ______.

Answer 10

tracheae

Question 11

What is the primary respiratory organ in amphibians?

Answer 11

Lungs and skin

Question 12

Multiple choice: What structure prevents food from entering the trachea during swallowing?

Answer 12

Epiglottis

Question 13

What is the main difference between aerobic and anaerobic respiration?

Answer 13

Aerobic respiration requires oxygen, while anaerobic respiration does not.

Question 14

True or False: The process of gas exchange occurs in the bronchi.

Answer 14

False

Question 15

What is the function of the nasal cavity in respiration?

Answer 15

To filter, warm, and humidify the incoming air.

Question 16

Fill in the blank: The movement of air out of the lungs is called ______.

Answer 16

exhalation

Question 17

What is the name of the muscle that separates the thoracic cavity from the abdominal cavity?

Answer 17

Diaphragm

Question 18

Multiple choice: Which animal uses lungs for respiration?

Answer 18

Mammals

Question 19

What is the primary respiratory pigment in human blood?

Answer 19

Hemoglobin

Question 20

True or False: The respiratory system also plays a role in regulating body temperature.

Answer 20

True

Question 21

Fill in the blank: The exchange of gases between the blood and body cells is called ______.

Answer 21

internal respiration

Question 22

What is the role of cilia in the respiratory system?

Answer 22

To trap and move particles out of the respiratory tract.

Question 23

Multiple choice: Which of the following is NOT a part of the respiratory system?

Answer 23

Esophagus

Question 24

What is the term for the air passages that branch from the trachea into the lungs?

Answer 24

Bronchi

Question 25

True or False: Amphibians can respire through their skin.

Answer 25

True

Question 26

Fill in the blank: The ______ system in birds is more efficient than in mammals.

Answer 26

respiratory

Question 27

What type of respiration occurs in the absence of oxygen?

Answer 27

Anaerobic respiration

Question 28

Multiple choice: Which part of the brain controls the rate of breathing?

Answer 28

Medulla oblongata

Question 29

What is the primary function of the alveoli?

Answer 29

To facilitate gas exchange between air and blood.

Question 30

True or False: The larynx is also known as the voice box.

Answer 30

True

Question 31

Fill in the blank: The process of oxygen moving from the lungs to the blood is called ______.

Answer 31

external respiration

Question 32

What is the term for the inflammation of the lungs caused by infection?

Answer 32

Pneumonia

Question 33

Multiple choice: Which of the following animals primarily uses gills for respiration?

Answer 33

Fish

Question 34

What is the role of surfactant in the lungs?

Answer 34

To reduce surface tension in the alveoli and prevent collapse.

Question 35

True or False: The respiratory system is responsible for the production of sounds.

Answer 35

True

Question 36

Fill in the blank: The ______ is the largest organ of the respiratory system.

Answer 36

lung

Question 37

What is the primary purpose of the mucus in the respiratory system?

Answer 37

To trap dust and microorganisms.

Question 38

Multiple choice: Which structure helps to regulate airflow in the respiratory system?

Answer 38

Bronchioles

Question 39

True or False: The respiratory system does not play a role in the immune response.

Answer 39

False

Question 40

Fill in the blank: The exchange of gases in the alveoli occurs through ______.

Answer 40

diffusion

Question 41

What is the effect of exercise on the respiratory rate?

Answer 41

It increases the respiratory rate.

Question 42

Multiple choice: Which of the following gases is primarily responsible for stimulating breathing?

Answer 42

Carbon dioxide

Question 43

What is the name of the condition characterized by difficulty in breathing?

Answer 43

Dyspnea

Question 44

True or False: The human respiratory system is a closed system.

Answer 44

False