Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Biology > Gas Exchange In Animals > Flashcards

Gas Exchange In Animals Flashcards

1
Q

What is gas exchange?

A

The process of taking in oxygen and expelling carbon dioxide.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

True or False: Gas exchange only occurs in the lungs of mammals.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Fill in the blank: In fish, gas exchange occurs across the _______.

A

gills

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is the primary gas exchanged in animals?

A

Oxygen and carbon dioxide

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Which structure in insects is responsible for gas exchange?

A

Tracheae

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Multiple choice: Which of the following is NOT a method of gas exchange? A) Diffusion B) Active transport C) Gills D) Lungs

A

B) Active transport

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the role of hemoglobin in gas exchange?

A

Hemoglobin binds to oxygen in the lungs and transports it to tissues.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

True or False: Amphibians can perform gas exchange through their skin.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Fill in the blank: The process of gas exchange in humans primarily occurs in the _______.

A

alveoli

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is the difference between external and internal respiration?

A

External respiration is gas exchange between the environment and the organism; internal respiration is gas exchange between blood and cells.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Multiple choice: Which of the following animals primarily uses skin for gas exchange? A) Fish B) Birds C) Amphibians D) Mammals

A

C) Amphibians

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is the function of the diaphragm in mammals?

A

The diaphragm helps to regulate the pressure in the thoracic cavity to facilitate breathing.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

True or False: All animals have specialized organs for gas exchange.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Fill in the blank: The gas exchange surface must be _______ to allow effective diffusion.

A

moist

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is the primary gas that aquatic animals need to extract from water?

A

Oxygen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Multiple choice: What mechanism do fish use to move water over their gills? A) Buccal pumping B) Active transport C) Diffusion D) Osmosis

A

A) Buccal pumping

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What is the role of surfactant in the lungs?

A

Surfactant reduces surface tension in the alveoli, preventing collapse.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

True or False: Gas exchange efficiency is higher in gills than in lungs.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Fill in the blank: In birds, gas exchange occurs in the _______.

A

air sacs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What adaptations do high-altitude animals have for gas exchange?

A

Higher concentrations of hemoglobin and larger lung capacity.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Multiple choice: Which process describes the movement of oxygen from the lungs to the blood? A) Ventilation B) Diffusion C) Respiration D) Circulation

A

B) Diffusion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What is the main advantage of countercurrent exchange in fish gills?

A

It maximizes the amount of oxygen extracted from water.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

True or False: The partial pressure of gases affects the rate of diffusion.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Fill in the blank: The exchange of gases occurs in the _______ of the lungs.

A

alveoli

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

What is the primary respiratory pigment in crustaceans?

A

Hemocyanin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

Multiple choice: What is the primary function of the respiratory system? A) Nutrient absorption B) Gas exchange C) Circulation D) Digestion

A

B) Gas exchange

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

What mechanism do mammals primarily use for inhalation?

A

Negative pressure breathing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

True or False: Gas exchange can occur through the integument in some terrestrial animals.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

Fill in the blank: The _______ is a muscle that aids in breathing by contracting and relaxing.

30
Q

What is tidal volume?

A

The amount of air inhaled or exhaled during normal breathing.

31
Q

Multiple choice: Which of the following animals has the most efficient gas exchange system? A) Fish B) Mammals C) Birds D) Reptiles

32
Q

What is the effect of carbon dioxide on blood pH?

A

Increased carbon dioxide lowers blood pH, making it more acidic.

33
Q

True or False: Gas exchange occurs at the cellular level.

34
Q

Fill in the blank: The _______ is responsible for controlling the rate of breathing.

A

medulla oblongata

35
Q

What is the difference between tidal volume and vital capacity?

A

Tidal volume is the amount of air during normal breathing, while vital capacity is the maximum amount of air exhaled after a deep breath.

36
Q

Multiple choice: The primary site of gas exchange in mammals is the: A) Bronchi B) Trachea C) Alveoli D) Lungs

A

C) Alveoli

37
Q

What is the role of the circulatory system in gas exchange?

A

It transports oxygen to tissues and carbon dioxide to the lungs.

38
Q

True or False: All gas exchange occurs through diffusion.

39
Q

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

A

inspiration

40
Q

What is the purpose of the nasal cavity in gas exchange?

A

To warm, moisten, and filter the air before it reaches the lungs.

41
Q

Multiple choice: Which structure prevents food from entering the trachea during swallowing? A) Epiglottis B) Larynx C) Pharynx D) Uvula

A

A) Epiglottis

42
Q

What type of breathing do amphibians utilize during their life stages?

A

Both cutaneous (skin) and pulmonary (lungs) breathing.

43
Q

True or False: The efficiency of gas exchange can be affected by environmental factors.

44
Q

Fill in the blank: Oxygen binds to _______ in red blood cells.

A

hemoglobin

45
Q

What is the main disadvantage of gas exchange through skin?

A

It requires a moist environment and limits the size of the organism.

46
Q

Multiple choice: Which gas is primarily produced as a waste product of cellular respiration? A) Oxygen B) Nitrogen C) Carbon dioxide D) Hydrogen

A

C) Carbon dioxide

47
Q

What is the significance of alveolar surface area in gas exchange?

A

A larger surface area allows for more efficient gas exchange.

48
Q

True or False: Gas exchange is a passive process.

49
Q

Fill in the blank: The respiratory system is divided into the _______ and _______ zones.

A

conducting; respiratory

50
Q

What is a respiratory distress condition that affects gas exchange?

51
Q

Multiple choice: Which part of the brain regulates the respiratory rate? A) Cerebellum B) Medulla oblongata C) Thalamus D) Cerebrum

A

B) Medulla oblongata

52
Q

What is the primary method of gas exchange in terrestrial animals?

A

Through specialized respiratory organs such as lungs.

53
Q

True or False: All animals require oxygen for survival.

54
Q

Fill in the blank: The _______ is a tube that carries air to the lungs.

55
Q

What adaptations do birds have for efficient gas exchange?

A

Air sacs and unidirectional airflow.

56
Q

Multiple choice: Which of the following factors can affect the rate of gas exchange? A) Temperature B) Surface area C) Concentration gradient D) All of the above

A

D) All of the above

57
Q

What happens to carbon dioxide levels during exercise?

A

They increase, leading to increased breathing rate to expel CO2.

58
Q

True or False: Gas exchange is the same in all animal phyla.

59
Q

Fill in the blank: The _______ is the site of gas exchange in the lungs.

60
Q

What does a lower partial pressure of oxygen indicate?

A

Reduced availability of oxygen for gas exchange.

61
Q

Multiple choice: Which animal group primarily relies on cutaneous respiration? A) Mammals B) Reptiles C) Amphibians D) Birds

A

C) Amphibians

62
Q

What is the primary gas exchanged in photosynthesis?

63
Q

True or False: The concentration of oxygen is higher in the atmosphere than in water.

64
Q

Fill in the blank: The _______ helps protect the lungs from foreign particles.

65
Q

What is the significance of gas exchange in maintaining homeostasis?

A

It regulates oxygen and carbon dioxide levels in the body.

66
Q

Multiple choice: In which location does the majority of gas exchange occur in humans? A) Bronchi B) Alveoli C) Trachea D) Nasal cavity

A

B) Alveoli

67
Q

What is the role of cilia in the respiratory system?

A

Cilia help to move mucus and trapped particles out of the respiratory tract.

68
Q

True or False: Gas exchange is not influenced by the organism’s activity level.

69
Q

Fill in the blank: The exchange of gases between blood and tissues is called _______.

A

internal respiration

70
Q

What is the function of the pleural membrane?

A

To reduce friction between the lungs and chest wall during breathing.

71
Q

Multiple choice: Which of the following is a characteristic of respiratory surfaces? A) Thin B) Moist C) Large surface area D) All of the above

A

D) All of the above

72
Q

What role does carbon dioxide play in regulating breathing rate?

A

Increased carbon dioxide levels stimulate the respiratory center to increase breathing.

Biology (17 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions